Sent my wife's Samsung S9 to these jokers as I was offered £140. Surprise surprise, just like many of the other decent folk on here we were offered a reduced cost of £30 as they said the phone has LCD and pixel issues.
The phone is in mint condition - we obviously declined the offer and just hope we get the correct phone back from them. Shocking that Trustpilot rate them highly - pity I found this website too late.