It is the problem of the wallet in such situation check for wallet updates. It happened once with me I was able to see the transaction on the Blockchain but not in the wallet. It is better to contact the support , if you still cannot see the transaction inside your wallet.
Okay , if it's true whatever he is saying then you need to check if your wallet is updated and if it is then you need to wait for a while and then write to their customer service , because if it's not his fault , it is the fault of the company which is running this wallet then you should update and then simply wait .
Hopefully you will get it but it happens sometimes , happens in local bitcoins too , but it usually is shown after a while .
You just need to wait .
OP got the funds already. It's just a few posts after your posts.
This.
It was last posted/updated yesterday so this might be the closest reason why OP got the delays.
Maybe this was just an isolated case and OP, unfortunately, got hit.
To OP, you can now consider locking this thread as the case was already solved.