MWEB going from bad to pathetic

More than 2 months ago , I decided to stay with Mweb -and I upgraded to the 85 G Lte product , the person I spoke to then gave me 105 discount for 12 months -on this product -with the original amount being R799 -when I then received my invoice -the full amount was reflecting , I phoned Mweb and was told the correct would be deducted at the end of the month , sadly they deducted the full amount , I tried to sort that out -eventually complaining here , I then got a phone call to state that the extra amount would be deducted of this month’s invoice and on this months invoice the 10% would also reflect , I received my invoice and yet again it was for the total amount , I went into my online profile only to notice that the 85G product I paid for -was never activated !! -I then phoned Mweb ,trying to sort it out , after almost 30min I just dropped the call , because there incompetence must now cost me more money ?? last month I paid form 85G -but the product is still on 50G -NOW ONLY has it been changed to the new product !!