Sardine did not deliver my crypto asset

Sardine did not deliver an asset I purchased this September. After some back and forth, they stated there was some technical problem with the transaction and promised a full refund. I am still waiting for my refund and Sardine has stopped replying to my email. Any assistance would be highly appreciated.

@Aman_M could you take a look ?
I guess it would be better to tag @hub as well.

Not sure what can be done here. @ibewil If Sardine says they will process refund then you should work with them.

Just out of curiosity, did you buy crypto from within Brave Wallet?