Why are coins not credited to my Deposit?

24.02 sent from the service Nicehash.com ETH coins to the exchange’s wallet.

Nicehash.com applies smart contracts for sending coins (I found out about this when coinex did not credit me with coins).

It turns out that Coinex has some problems with crediting coins sent using smart contracts (there is no information about this on the ETH coin Deposit page).
Now for the fourth day, technical support offers me patience!

I don’t understand what the enrollment problem is at all. There are coins on the specified wallet. Enough time has passed to cope with such an easy task.

This is already a Scam.

Has anyone had similar problems?