Pathetic service!!!!

So i go to jet stores in east london for the 10th time trying to fix my account balance..the MANAGER tell me thats she doesnt know how head office calculates accounts..who hired this woman if she cannot help customers with simple mathematics! I then call head office that sent me to the store again then the consultant just puts the phone down in my ear! Edcon has made my life a living hell all for my account still not to be fixed! What do i have to do for someone to help me to the end and fix my account. Call me ********** 341 only if you are competent to handle this query because consultant asked me for my bank statement to be taken to branch to see if money was put back into my account nd wen i get there i get told by Manager she cannot reconcile accounts! Who the hell do all these staff members report to because poor service is due to poor management!