They could help you solve your problem. In your ticket you should include your transaction hash and tell them what happened. After that, what you have to do is to wait for their response. I checked their FAQ about
Recovery of mistakenly sent deposits and I saw this:
Blockchain transactions are not reversible.
In case you’re accidentally sending money to the wrong address, which means that nobody has the keys to that address, your coins are most certainly lost forever. Please make sure before performing a transaction that the destination address contains no typos and mistakes.
However, if you accidentally deposit one currency to another’s address on HitBTC, we are most likely able to help you. For example, sending ETH tokens to your ETC address, or one token to another’s address, or BTC to USDT address - these kinds of mistakes are reversible.
Please note than Bitcoin Cash coins, sent to Bitcoin address (BCH to BTC), could not be refunded!
Nevertheless, the correction of such mistakes requires quite an amount of labour of several people. That is not an easy process, and it requires time. Here’s how we handle it:
Mistakenly sent deposit is being credited to your account within 2 months after we confirm that it’s possible to do so
The equivalent of $100 is being deducted from the amount of that deposit.
In case you encounter such issue, please file a ticket to us. Provide us with your transaction hash and describe the essence of the problem. We would be glad to help!
Reference:
https://support.hitbtc.com/hc/en-us/articles/115005447669-Recovery-of-mistakenly-sent-depositsEDIT: I saw someone
posted that he got a reply first in HitBTC Forum than in Email. If you want to try:
https://forum.hitbtc.com/categories/support