A very mature response. ET didn't say nothing could be done, he said they couldn't check anything without some sort of ID or proof, which you didn't provide sufficient evidence of.
You were also asked by Agatio to give your paypal ID as he was having trouble finding your transaction, which you could get from logging into your paypal. He's a busy man, I'm sure he will try to get around to checking as soon as possible and we apologise for any delay, however you will need to be patient.
Instead you just post this on public forums to get attention. Please go back to the helpdesk and answer the questions you were asked so your problem could be solved.