Breach of contract

On the 29 October i migrated from 5gig data to 10 gig and an email was sent to me that confirms my migration saying as from the 01 November i'll be on 10gig package but to my suprise it was never the case. On the 02nd November I decided to check if the correct data was allocated and only to find that it was'nt allocated.I then received my invoice for end november and it showed that i have been billed for 10 gig which i was never allocated.I made a follow on my billing query and i would be given refence numbers for my calls and i had clearly specified i should be contacted via telephonically but i was only sent smses of which i find unproffesional and i was being ****** had i not picked up that i wasnt allocated the agreed data.Till to date no one has ever called to acknowledge the fault of BREACH OF CONTRACT.I wonder how many people are being ********** as it clearly shows vodacom doesnt care about their customers.I have 3 existing contracts with them and i have therefore concluded that once they expire i rather not renew them and take my business to companies that cares and value their customers.