1. They doesn't seem to answer.
2. Somebody mentioned that cleaning browser cache (?) helped him to get stuck transaction cancelled. Is it possibie?
Maybe more details, please?
This I doubt. Technically all I can think of is if your cache says stuck but in actuality page has changed. So no the chance is slim to none clearing your cache will effect this.
Your browser cache shouldn't have any effect on the back-end of their withdrawal system (that would be a huge security issue). I successfully withdrew all 80,000 NOBLE that I had on Coinex but my VertCoin withdrawal created a day later has still not gone through. It's been 5 days now and I'm hoping that it is something to do with lack of funds. I wouldn't go screaming scam in bold just yet but I'm eagerly awaiting my funds.
8000 Doges still missing.. No mention in the blockchain, no funds in the account balance.