Haven't been able to access my account for a month

It has now been over a month that I have not been able to open hearthstone. Every time I try opening I just get the same HS:NGRESULT DB ERROR:303:0 Error. Support won’t help, everytime I do what you guys say in these forums they just ignore me. I dont know what to do at this point other than make a fraud claim with my bank. You guys have taken my money, locked me out of my account, and ignored me. Its just a joke