I sent a S8 to mazuma got the standard screen burn scam I refused then got second slightly higher offer but stating different fault so I rejected .I got in touch with citizens advice who gave me some great advice about how to get my handset back and they are reporting them to trading standards as this seems to be the way they operate ..send a low offer because of made up faults of you reject you then get a slightly to get offer hoping you accept.....I sent a to the point email to customer services got my phone back the next day ...did it have screen burn no it did not it has now sold for more than I was originally offered by this bunch is thieves ....I did contact customer services about my handset because two different emails stated two different faults there agents reply was " we must have got your device mixed up with someone else's " absolutely shocking how many more handsets have they " got mixed up "