Vodacom - worst service and system EVER

Issue started in last year June, went overseas, got overcharged for data, even though I called Vodacom and they assured me it would go off from the bundle that was bought, there they admitted (after a HUGE battle) it was a fault on their side and refunded me, I warned them at the same time I am going out of country again in August and was again assured don't worry sir, won't happen again. Surprise surpriseas it again happened, I refused payment and told them to only contact me via email, made several attempts to sort it out from my side, to no avail, each time a new person swears THEY will handle it, only to disappear on me or best yet reply to me via email with a "do-not-reply" email, went to the Vodacom store to get it sorted and the first time had no effect at all, same as with the dissappearing act over the phone, the second time round I was utterly angry with Vodacom and told the technician about the whole history, he was powerless to assist as the shops have no real purpose it would seem other than to sell, sell, sell, ****** the system bugs that they could fix in the past. When he phoned Vodacom call centers you could even see the frustration on his face after they failed to help him, just as they did me. Now Vodacom has wrecked my payment history, which was perfect up and untill I drew a line and refused to pay since they cared nothing for service delivery, and they deleted my number, I was attempting to port out to MTN and was promised that the number will not be withheld, they even told me no request was made from Vodacom port department when I phoned, and yet MTN could not only provide me with proof that they did attempt the port (PORTID was given) they could also tell me the error code. So Vodacom has no clue what they are doing, how it affects other departments or even have the slightest inclination to assist. All the while I have been blacklisted, bad mouthed and told that I am in arrears when they cannot seem to even do simple math and fix the same damn issues that I warned them will happen again, even their "associates" they use to handle these cases that I was handed over to could not located my file as it was in Durban, yet the number Vodacom gave me was for JHB. This is by far the worst level of service delivery and customer handling I have ever experienced, the funniest of which is that this is the 3rd incident with Vodacom, I guess I'm the ***** for staying with them this long.