I think they can just use my amount to earn some money by speculating and after that maybe they will decide to make my transaction or refund my assets.

What happened::
I made a SYScoin withdraw on Yobit and it's completed at 2018-05-16 22:56:45 with Yobit's transaction id: c4abbe89933b622498e82dc55537cc29e3394ff8fa6e6d91aad00c49739b7758. It's two days I can't find my assets in blockchain explorer and on address that I provided during withdrawal.

Amount Scammed:
2370 SYS
Payment Method:
SYSCOIN
Proof of Payment:
c4abbe89933b622498e82dc55537cc29e3394ff8fa6e6d91aad00c49739b7758   -   provided by Yobit.net
PM/Chat Logs:
Written to support, no any answer, same for yobit chat
Additional Notes:

Have anybody idea about solving this situation