I bought a Boss-90 guitar effects board. The seller decided to send it via Fed-Ex, who were useless (tried to deliver twice while nobody was in, couldn't change delivery instructions, went back to seller). We tried to rearrange delivery, then seller stopped responding to messages - Ebay did nothing as it was outside the 90 day limit. 

Seller disappeared, but has no reappeared selling items.

I have been waiting over a year - no refund, no guitar board - any advice welcome.

*Update - my Dad has emailed him, via his own account, asking a question, and he has responded to that.