Spam sms's and no help

On Saturday the 21st October at 23h30 i ran out of Data and when you run out of data you get a sms notification to tell you. But Vodacom decided to send me an sms every 3 minutes for the next 16 ,5 hours a total of 330 sms's was sent to me in a matter of 16 hours when i called in to the call center they gave me a whole bunch of numbers to dial and opt out of things i did that changed settings switched off my phone and on again i had this fight with them until 12 a clock on Sunday afternoon i had no help from the staff nore the Manger i spoke to they told me that all that they can do is log a call to there technicians whom i am still waiting for a call from. The messages only stopped when i recharged again so does this mean that Vodacom is going to do this every time i run out of DATA the problem is still not fixed and when i said that i am going to go to another network i got told i can do what i want so they are not even trying to keep me as a customer after being with them my whole life i think its time i part ways with Vodacom and join another family telkom promise good this i think i will start there. YOU HAVE LOST A CUSTOMER DUE TO YOUR STAFF AT YOUR CALL CENTER BEING SO UNHELPFUL AND NON-CARING .