Poor communication

i took out a telkom mix package at the telkom branch in southgate , the lady advised me that there would be a pro rata amount that will be deducted on my first invoice i receive and thereafter the billing would be the normal contract amount which subsequently has not happened not due to my error, They have now suspended my service without any notification from Telkom side and now all the data i currently have on the package will fall away because its a new billing month, I feel the data amount should be carried over to the next month as the billing error is not my fault but Telkoms and to add to my frustration the Telkom Mix call centre is pathetic i have been holding on at that call centre for approximately 2 hours with no answer on their side...you guys need to Jack up your service.