Vodacom Customer care is a no go

I 've been struggling for a month just to change my surname on my vodacom statement due to marriage. First i was advised to mail the supporting documents to customer care, when i phoned to check progress the documents was suppose to go to another department , i did that and when i phoned they said it was the wrong id . Even though it was the right Id document , i then resended the documents then they couldn't open the documents , the documents was in the same format as the previous time ??? then i resended everything again then the marriage certificate was not there, i took pictures of the mails showing that the documents was there and SUPRISE when i received my statements it was still on my previous surname. The consultant advise the beginning of the month it was something that only takes 24 Hours . Yeah right. If vodacom can not even manage to do something this small i don't think this is a company i want to do business with, i've been with vodacom for 25+ years but i'm done now.