I made a selling offer a month ago and the buyer did indeed send me the funds (transfer). However, I was travelling and forgot to unlock the funds. I logged in around 15 days later and saw a support ticket.
I answered in the support ticket that I indeed received the funds and the buyer should receive his BTC.
Now the support ticket disappeared and the buyer found a way to contact me using my bank details. He says that he still did not receive the BTC. I have no way to see the transaction other that the wallet transactions where I have proof the BTC was sent to the tx address.
We both have all details of the transaction. Who should I contact and submit the details to ? I want to confirm that I received the transfer so the buyer gets his funds.