Reviewers most often praise Mozillion for competitive pricing, fast delivery and responsive customer service; many note straightforward switching and good network coverage. However, a minority report intermittent SIM failures or problems with account restrictions and dispute handling. If you are considering Mozillion, check the provider’s fair‑use terms and ask for confirmation in writing about any ‘unlimited’ plan limits. Also confirm eSIM/porting procedures and expected delivery or turnaround times with customer support before committing.
Examples from available reviews (Sep 2025 – Feb 2026).
Unlimited plan was restricted without clear limits and poor customer support.
“Their “unlimited” is not unlimited, their systems don’t work, their support is clueless”
Sim intermittently stops working despite contacting support.
“still the sim stops working every now and then.”
Seamless switch and saved about 50% for a family of four.
“Excellent pricing, saving 50% for a family of 4 with 4 SIM cards”
eSIM transfer delay resolved by prompt, friendly customer service and physical SIM.
“Very prompt service, the new sim turned up in the post 2 day's later”
Majority report prompt, helpful customer support and smooth order handling; a minority experienced unresolved issues around porting and account restrictions.
Many reviewers cite clear cost savings and generous data compared with previous providers; one reviewer disputes 'unlimited' plan terms and value.
Switching, delivery and setup are often described as quick and straightforward; a small number report intermittent SIM failures or transfer friction.
Coverage and device performance are frequently praised, though a few users report SIM reliability problems and service interruptions in individual cases.
Several reviewers highlight prompt, friendly communication and named staff; others describe poor transparency and delayed or absent follow‑up about restrictions.
Most reviewers report a positive overall experience driven by price, support and easy switching; a small number report serious negative incidents.
For each review, the core experience based on original source reviews.
Sources: Trustpilot (40) · Quotes shortened · As of: February 2026
Easy ordering and fast dispatch; number transfer worked without problems.
“The ordering process was very easy and the phone was despatched very quickly.”
Signal is unsteady and 5G performance is below expectations.
“Signals are not steady it’s goes up Ann’s down all the time . 5G is not as it should be”
Switch from EE was seamless and indistinguishable from previous provider.
“Switch over from EE was seamless, so much so that I’m not even aware that I’m not with EE anymore.”
Slow email responses, but Douglas resolved eSIM swap quickly by phone.
“Douglas sorted me out by swapping an eSim to a new phone within a minute”
Reports great signal but experienced a SIM delivery delay.
“Great signal, delay in sim delivery”
Reviewer finds both value for money and service to be great.
“Great value for money and service.”
Quick transfer and good two-year upfront price with same EE service.
“Quick and easy transfer”
Customer service promptly cancelled duplicate eSIM purchases and issued refunds.
“it was sorted very quickly cancelled and refunded my money.”
Cancelling an extra SIM was easy and refund was issued next day.
“Number ported in 3 days, again no issues.”
Website is easy to use with many options and great prices.
“Easy to use website featuring many different options at great prices.”
Tegan provided very helpful, efficient and friendly customer service.
“Tegan at Customer Service was extremely helpful and efficient, friendly too.”
Ordering and delivery were easy and quick; communication and support excellent.
“Phone was easy to order and delivery was very quick.”
Two-year SIM worked well with EE coverage, but website and usage tracking lack an app.
“Paid upfront for 2 years for a 100gb sim.”
Easy access to knowledgeable staff who explain and ensure system functionality.
“Easy access to a real person who knows his stuff about the system”
Douglas provided polite, patient and very helpful customer service throughout.
“Douglas was very helpful, he guided me through everything and was polite, patient and courteous throughout.”
An immediate answer was given and reviewer called it awesome.
“Gave answer immediately”
Pay-as-you-go eSIM purchased and number ported in under 24 hours.
“Pay as you go esim bought yesterday and my old number was ported in less than 24 hours.”
Service offers great coverage and excellent value for money.
“Great coverage and excellent value for money.”
Delivery was fast and customer service excellent.
“Fast delivery excellent customer service”
Easy purchase and setup, but online tracker failed for one phone.
“on line tracker for one phone doesn’t work”
Porting issues could have been communicated better, but overall positive.
“Issues with porting my number could have been communicated a bit better.”
Used for three months and device seems to be working okay.
“I've had it for 3 months seems to be working okay”
Reviewer is very happy with the service and new phone.
“Really happy with the service, love my new phone”
Seamless switch and saved about 50% for a family of four.
“Excellent pricing, saving 50% for a family of 4 with 4 SIM cards”
Found phone and airtime plans great value; everything going well.
“Great value phone and airtime plans.”
Describes the system as faultless and priced well.
“Faultless system at a great price”
Sim intermittently stops working despite contacting support.
“still the sim stops working every now and then.”
Company is nice and easy to deal with.
“Nice company easy to deal with.”
Reviewer reports great network coverage.
“Great coverage”
eSIM transfer delay resolved by prompt, friendly customer service and physical SIM.
“Very prompt service, the new sim turned up in the post 2 day's later”
Changing number was very easy; phone worked immediately after SIM insertion.
“Very easy to change number,after inserting new sim phone was ready.”
Delivery was very fast and prompt.
“Very fast delivery”
Company provides a good product at a good price.
“Provide a good product at a good price”
Reviewer is very pleased and expresses thanks.
“Excellent very pleased thanks”
Quick order response and seamless SIM transfer, excellent data value.
“Three times the data for nearly half the cost!”
Customer service was pleasant and efficient; network performing well.
“Very pleasant and efficient service from the customer team.”
Unlimited plan was restricted without clear limits and poor customer support.
“Their “unlimited” is not unlimited, their systems don’t work, their support is clueless”
Switching was impressive: swift porting, excellent eSIM security and good support.
“I have just switched to Mozillion and so far, they have been impressive.”
Customer service (Amanda) resolved preorder issues promptly and efficiently.
“Amanda in customer service was absolutely fantastic”
Second-time user: phone arrived on time and well-priced.
“This is the second time I have used this company, the phone arrives on time and is a good price.”
This page combines submitted experiences with public reviews from platforms such as Google, Trustpilot, etc. Recurring points are summarised without changing the content of reviews.
Mozillion is a UK mobile provider referenced in consumer reviews for SIMs, eSIMs, devices and mobile plans. People searching for reviews typically want information about pricing, switching and porting, delivery, network performance and customer support to assess whether the provider suits their needs.