Vodacom need to jack up there service

In december 2017 i called to cancel one of i contract with vodacom and was told to do it a month before the contract end date in april 2018. In january 2018 i got a call to upgrade the number, I upgraded the contact in January 2018. Paid the new contract amount and received the data and airtime up until the 27 April when the original contract was due to end. Since then I have called in 5 times and spoken to numerous departments to no avail. There was +-R600 in airtime as well as a lot of data. They then reactivated it but the benefits I had are no longer there. I have received the upgrade phone but everything else is missing. How can you not follow threw with an upgrade. To top it all off. They are now charging me an activation fee, so at the end of this month I will be double debited for a phone that has no benefits. Since the 27 April 2018 i have 7 reference numbers for the same issue. I have been a vidacom customer for 10 years and have a few contracts with them. I am no longer a happy customer.Please assist