Vodacom service

I have been made to believe that i upgraded 2 contracts, however discovered that i have been added 2 additional contracts. I immediately cancelled them. Various request was logged to repay the amount back. After lots of follow ups it was decided to credit the amount to my account. The amount in question was for october, but still no joy. I upgraded my wifi on 18 jan. Took back the wifi today as i have to charge it 4x daily. I was told that this modem was better, but today the assistant said it wasnt. I am dissatisfied as the personnel did not play open cards with me. I believed that if i wasnt satisfied with the instrument that i can take it back for something else, even paying more. I was a loyal customer for more than a dekade. But regretting all the business with vodacom now