There appears to be little to no support here. Not sure why they call this a support forum. You might have better success over at Reddit on the Monero forum.
https://www.reddit.com/r/Monero/
Transaction no gone through, and XMR disappeared.
acekelowna posted this 7 years ago
Made a transaction through : MyMonero Wallet, transaction didn't work so now XMR gone. What is my next step to make ?