Guaranteedunlock 

I rarely score full marks, however, very impressed to get my code on Christmas Day having ordered yesterday afternoon. Like others very simple and worked immediately.

If only all companies were like this.

brilliant service, code came fast with clear instructions and works perfectly,
saving money and time from phone provider, will recommend to everyone,
many thanks

very efficient, took around an hour and half from first placing order, works first time! in town i was going to be charged £20 and have to wait 3/4 days whilst they got the codes! great service and would recommend in the future! Thanks

fantastic,simple,efficient service

Got the codes no problem. They worked no problem. Now my dad is happy. Will use them again.

Excellent, no mess does what is says on the tin can trust them.

I bought a mobile phone in the Seychelles and brought it back home to the UK, only to find it was locked. Guaranteedunlock quickly sent me the unlock code. Excellent service.

Guaranteedunlock succeeded where others had failed (mobileunlocked - recommended by Giff Gaff).

Guaranteedunlock were true to their word - 5 working days and they sent me one unlock code, along with instructions on what to do. I followed the instructions to the letter and the code worked first time!!!!

Compare that with mobileunlocked who took 15 days to tell me they couldn't unlock my phone (Nokia Lumia 930 on O2).

This was my first time using Guaranteedunlock but I will definitely use them again and will happily recommend them. Very pleased with their service and communication. Thank you very much.

Very professional and fast response.
totally recommended

Phone unlocked! Thanks!

Al principio no estaba seguro de pagar por el servicio, pero ha resultado una excelente inversión; tengo mi celular Alcatel OT 7042A liberado en Panamá gracias a esta compañía, Es el único lugar que he visto que tenga la opción de liberar este modelo y por menos de 10.00 USD, Excelente Servicio!.

The code worked first time, not the cheapest but hassle free. Well worth the search.

This company isn't the cheapest out there by a long way, but when they say "one try" it means just that, one try. Clear instructions, and the promise of a full refund in the event of failure, you cant lose! Will be returning very soon.

this is what service should be. Professionalism and accurate service are examplary. Highly recommended.

This is the best unlock service ever,its a good thing I found you.

Dear Team,
Really excellent .I tried many unlock company but code is not worked.
But you are given first code itself worked.so i am very happy towork my mobile .So thanks a lot team.very good work.

Mine was a tricky unlock, where the initial code did not unlock for me. However, the team was great. We sent emails back and forth to analyse the problem, and within 48 hrs the issue was solved and the code was cracked! I WAS THRILLED! Great service, dedicated and courteous team. Great great value! I very highly recommend this service.

best unlock service,super fast. i would recommend it to everyone.

Great service,super fast,i would definitely recommend to others.very good price and very professional. great job,Guaranteedunlock !

The method is very simply and the company deserves all my best trust.