Empty promises

I have 2 contracts with Vodacom. Need to cancel the one (budget) I got a notification that the number I want to have canceled is ready for upgrade but I can only cancel 13 January. Comes 13 January they convinced me to take a small package and not take a device and the package was affordable. When check on the Vodacom app it still kept showing the same amount. Got into contact with an Ashley that picked up their system got it wrong and only eligible for that amount April. I said it is not acceptable. They can go onto their recordings and listen to how many consultants said 13 JANUARY!! Not april. She logged a case. I have the number where she said vodacom will have to reimburse me for those months. Have this on record. Not a cent has been reimbursed and just to top it off - IT STILL SHOWS THE SAME AMOUNT. I now don’t want the smaller package as I have want to cancel it. This is a REPSOST from the 3 April! I had a call from this post which I was satisfied with. The problem is it now the the 5th of June and ABSOLUTELY nothing was done as promised!! No credits like promised. Still overpaying on my bills!! I don't know what to do anymore! Phoning and emailing is an absolute waste of time and even more money!!