Bank froze my account after a Binance refund — need advice

Hi everyone,

I want some advice a few critical challenge.

I completed a Binance order for ~243 USDT. After receiving the cost, I launched the funds to the client. Later, the client requested a refund, and now my Raiffeisen Bank Serbia account has been frozen and a big quantity reserved. I can't withdraw or use my card.

I went to the financial institution, however they couldn’t give a clear answer. They stated they contacted their help group, however I haven’t acquired any response even after ready several hours.

On the time, I had a number of orders, and I didn’t notice that the customer identify and financial institution particulars didn’t match. This was an trustworthy mistake with no fraud involved. I also have all of the evidence, and I emailed all the screenshots to the financial institution, but I still haven’t acquired a reply.

Has anyone faced an identical state of affairs? How can I get my checking account unfrozen or deal with this type of concern?

Thanks prematurely for any recommendation!