ascentive finallyfast corrupted my computer philadelpia pa.19102 Internet

i bought their services namely spyware malware scan, pc scan sweep,pc speed scan prp,junk clutter scan. all of those i bought last dec.14,2014. after i down loaded those services, my computer starts to mulfunction..i was not able to access my bank accts. while online ,my computer would dropped me and lose my information and transaction.my computer started to go very very slow. . then i ended up calling for computer technician to fix the problem. It ended to bringing my computer to its original  shape when purchased. of cource i lost all my data. i called ascentive to give my money back and i was told that 30 days already past and so they will not give my refund.  this company is a ripoff. DO NOT BUY FROM THEM!