YoBit could do better job if they had a better customer support. All these mess against them is because of their poor customer service.
It's not just customer support. They have shady ICO's, pump schemes and other activities which can easily loot the investors. They were a decent trading exchange a few years ago but due to massive bitcoin rise, they are just a money-hungry service with no real intentions of serious operations.
The reason OP wanted to contact them is to get paid for using their signature. He doesnt have a real problem...
Yeah, he thinks writing to the support is going to help him get his peanuts back when people have been waiting for years with their serious money-related issues.