Having read the good reviews on here I decided to give them a try. The website is basic, but says you will receive your code within 24 hours and an average of an hour. Paid £14.99 through PayPal. They ask for no info other than IMEI code (unlike other services). After paying, there is no info to tell you what happens next, but there is a free helpline to ring if you need to. There was no acknowledgment email. Nothing. 6 hours later, I was refunded. No code. No explanation given. No email. Nothing. While it's great that I'm not out of pocket, some communication would be nice. I had to then start over and get the code elsewhere. Disappointing

does what he says code came within 20 min and worked, and on a Sunday too! excellent product, price and delivery A+++ Graham

I am amazed & so happy with the service from this company! I was advised by EE I would have to wait for 10 working days to unlock my Samsung Galaxy S5, so I contacted an independent shop who quoted me £35 with a 4-5 day wait time!! I finally found the reviews for Code-Calculator.co.uk very good, so took a chance, and it was so worth it!!! My phone was unlocked under the 24 hour time frame, for only £14.99, and Eric who I spoke to was so helpful and reassuring! I will be recommending this company to everyone - again thank you so much!! :-)

This is the third phone I have unlocked over a period of several years. The service just works. Within the time specified. No bother.

I have used this company a few times now and each time has been great. Codes received and they work! Would highly recommend.

Got the unlock code quickly it worked and I sold the phone in double quick time. Will use again. A++++++++++

Code arrived in 15 minutes and worked perfectly well. Good price. Would highly recommend !!

Very happy with the service, fast and very cheap just £4.99. Highly recommended thanks.

Hi, used your site twice over the last two days, to unlock two HTC phones. Had no problems at all, very easy to do within 10 min. of sending my email I had my unlock codes emailed back to me. Both phones unlocked at the first attempt, would recommend this company to anyone in need of this service. Thanks Mr T Keeling. Staffordshire.

I was looking to unlock an old contract phone that I had and found code-calculator. Great price at £4.99 too. It took a little longer than indicated but I can't really complain as the code worked perfectly first time. Highly recommended

Bought a phone on E bay for my 10 year old son so that we could contact him anytime and he could always contact us if he had a problem. The phone was sold as unlocked by the seller, when we received the phone it was locked and the seller wouldn't respond to or messages. Our son was gutted. I contacted Code Calculator and a gent called Eric was very helpful and patient, with in 15 minutes he had our phone unblocked and working. I cannot begin so express how surprised at the excellent service that I received. Will recommend this service to absolutely everyone. Wish all companies were as good as Code Calculator.

Get the IMEI number right and there will be no problems. Good price, no weird downloads, no extras, no agg, 20 mins to get code and friendly staff on real numbers (not 0845 or 0909 etc) Brilliant!

Phone code delivered in about an 25minutes Via email and it worked perfectly phone unlocked. This is a genuine phone unlock company.Highly recommended...Don't waste your time looking else where to unlock your phone.

Wasted weeks on-line, checking how to unlock it without paying. Unlocking boot logs and loading up files and stuff. For only a fiver it was a bargain.My local phone shop wanted £15! I was a bit weary of these sort of sites but looking at the reviews, I took a gamble. Well Pleased. Came into my Junk Mail though. Thanks

excellent service and a very useful feature. everything was fast. thank yo very much for your work

A quick and easy service. Code arrived quickly, with good instructions, and worked first time. Recommended!

Phone code delivered in about an hour, worked perfectly, phone unlocked.This is a genuine phone unlock company.Highly recommended.

would recommend to anyone cheapest price i could find on the web

Superb service. Very professional and helped resolve issue swiftly. I highly recommend this company. Knowledgeable and helpful staff. I am very glad to have come across this company.

Fast response and mobile working with oder network. Thank you