This feed back about your payment proof from newbie will actually raise flag as regards the legit website.
I believe he spoke to me on live chat, I asked him to leave feedback so I guess he was a forum lurker.
hello admin! aside from blockchain wallet. can we use other wallets such as coinbase or xapo?
I do not know, web wallets sometimes have alternate receiving address's to the sending address. If you are sure both address's are the same I dont see a reason why it would not work. To be 100% safe, you can also make a temporary blockchain wallet to play with.