Isend message to Quickseller and macbook-air Iam waiting reply from them
You could also try another paid accelerator and I think ViaBTC offers a service for their customers as well.
You could also try not using YoBit.
Just a suggestion to OP once you receive that amount from the help of quickseller or macbook-air, try to stay away from that exchange since that site has unresolved scam accusations here and has a poor support.
How much was he transferring (was his the 0.01 or the 0.8x) and what was your fee for helping out?
I'm pretty sure that pushtx is a legit accelerator because it's from btc.com. That said, they charge a hell of a lot to get the transaction confirmed.
To be honest the OP has no choice but to run it through a paid accelerator and accept crazy fees for such a huge transaction. If only YoBit had sent fees of 10 satoshi/byte...