If you have been scammed by this business' too then instead of just writing angry reviews report them to https://www.actionfraud.police.uk/ I have but nothing will result if I am the only one to report them.
They took £45 from me and never unlocked my phone. I lodged a claim with Visa but I never got my money back. This did piss them off though. So much so that they wrote and Andrew email back to me threatening to cancel my unlock (but they never unlocked my phone in the first place) unless I paid more. Hmmm certainly doesn't sound like a demand a legit business would make. Report them today!