Mobius mobile mobsters

What do you do wih a company like MOBIUS MOBILE...firstly the blatantly broke their own contract with me ...even though i emailed several times what i needed and on their so called recorded telephone call which they dont want to refer back too..then to make it worce GAVE OUT MY PERSONAL ..AND BANKING DETAILS to varios other companys ....Obviously with out my permission ..they cost me a fortune.eventually i shut my bank account...now they still have the nerve to ask me for R800 .....haha..ive sent numerous emails to them to no avail....please will some one at Mobius....switch On bra!!!!.ive asked you to contact me so we can sort this out legally so i can expose you for the shocking sevice...underhand ed way you do things....im not paying you..you have sent me 23 FINAL NOTICES...haha lol...look up final in the dictionary...and then contact me ....I REGRET EVER GETTING INVOLVED WITH U...ANTBODY ELSE..U BEEN WARNED