Today I opened a new ticket for this "Buying bitcoin transaction failed." message. Now support replied that this request has been closed and merged with my request from 2 days ago for the message "your account is blocked. We're checking with the bank." But still no reply on that ticket.
So they close my ticket from today saying they merged it into a ticket from 2 days ago but still don't bother to reply on that ticket
This is some terrible support and as a new user I am not happy with this site at all.
It's a bit surprising that the OP hasn't replied to any user here for a while and as far as I know you aren't the first one.
They have closed many accounts recently and I think that the bank that they incorporate has made this so it is a bit messy to solve this.