Dissatisfied

In June I contacted Vodacom fibre with the intention of downgrading. The reason was that at the beginning of my contract, it started with a discount because i was paying R599 for 200mbps x 200mbps and this was a 6 months discount. During the months of May i received an email stating price changes and then I contacted them to get clearity. Fairly enough the consultant explained to me, and she suggested that since this count was going to end in June I might as well downgrade to 100mbps x 100mbps and that the discount ends in May it was R899 but it had a discount of about R150. I agreed to take it. I was billed R899 for two months and the I contacted them again to raise my concern and I even decided to downgrade again to 50mbps x 50mbps, they investigated it and cleared the matter (at least I thought so). The even promised to look into the fact that why my discount for the past two months was not activated. STILL NO REPLY. My new price plan was R699 with a discount of R149.99, It has not been activated instead the monthly payment almost doubled last month I was billed about R1300. Now the total is R900. In not more than a month I will be moving to a new house, I am battling with my thoughts if I should change or not.