Excellent service, S7 unlocked for just £4.99 very quickly!

After a bad experience with an unlocking sham website (DirectUnlocks) who charged £11.99 and then insisted another £36 was needed to unlock my O2 network locked Samsung Galaxy S7 (Sham artists!), I found unlocks.co.uk.
This was also after filling in the O2 website unlocking form which got me nowhere (thanks for nothing O2!) O2 appeared to suggest they did not recognise their own PAYG sim number working in the phone!
I contacted Unlocks.co.uk via their website form and received a quick email response from D (review site says not to mention staff names!) who was upfront and transparent about the cost, timescale, and possibility of failure as my phone was bought used from a CEX high street store.
I'm absolutely thrilled to say that for just £4.99 unlocks.co.uk unlocking code succeeded 1st time and in less than 24 hours.
My formerly O2 locked handset is now unlocked, confirmed with a PAYG Vodafone sim.
Something else which was really good is that I was able to use PayPal to pay whereas the website used credit and debit card payments which caused me to stop my debit card in case of further misuse!
Brilliant! Thanks D! Thank you Unlocks.co.uk!
From my personal experience you cannot go wrong with this company.