This incident happened in early May and you are reporting it now? Also you have just shared an email from 13 May stating that the platform will return the funds, how do we know it did not happen?
You have to provide detailed proofs of your deposits and screenshots of your failed swaps/ more conversations between you and the exchange.
At this stage you have not provided anything to facilitate a worthwhile discussion.
Please read this for better understanding about how to properly file a scam report;
Scam Report Format (Use it to make scam reports properly).