After all these years in the cryptoworld, I seem to have walked right into this with my eyes closed.
Changelly - My transaction a9a5f964a27d has peen pending for 8+ days, after the funds reached your wallet.



At least they seem to respond on twitter. They seem to have blocked comments on reddit.
They seem to be trying to clear the small value transactions, while leaving the big ones open.

Goosus, please let us know if your issue gets resolved.