Bad Service Vodacom

Unable to transfer airtime data to another phone. Reported, phone synched. Error unresolved. Reported again. Was told the limit had to be increases, I never set a limit or asked for a limit to be set. Got message query resolved,. Tried to transfer airtime again 2 weeks later. Same error, Insufficient funds, close all active internet connections. Reported again. Phoned synched. Received message problem resolved I sms'd NO. Different call centre agent phoned, phone synched, still not working, escalated to Back Office. Received sms, problem resolved, said No. Another agent phoned me. Phone synched, limit increaes. I still cant transfer airtime. Error must be escalated. I say its already been escalted. Wait 24 hours they will phone back. Get a call the next day, problem not fixed. Request Back Office to phone and explain what is causing proble. Get sns problem resolved, I respond NO. Another agent phones me. Synched phone. Problem not fixed, must escale etc etc etc. No contact from back office. Error not fixed, I still cant transfer airtime. The call centre agents have been kind, polite and understanding but I have now spoken I think to the 6th one about the same problem. The Back Office has not made contact to explain what is going on. This is not service. It is an exercise in frustration.