Vodacom the ****mer

Signed a contract with vodacom where I paid R199 for 20G in 2017 but throughout the years vodacom would increase the prices without notice until last year when I upgraded for sim and router for R229 still getting 20G immediately after upgrad I paid R250 something I never got to pay the R229 I signed for on the contract I did complain I never received a clear explanation. The price increased up to R350 something and the debit order would bounce because I would leave R200 and something on the bank for them to debit, I complained to the branch but not assisted, this year around May I decided to take this seriously I called them questioning this increase they said its only R270 something appearing on their side in which also I'm still confused because I'm supposed to be paying R229 for 2 years as it is a contract but now I end up paying R350 something. And sonce 2017 i still receive same data but amount of money keeps going up after signing up. June that is last month I called requesting to cancel the contract they told me I need to pay R1283.84 inclusive of full month amount then I can be able to cancel that's when I called cancelations and apparently my account was in arrears, I did that when I called again I was told the following then even after they kept on telling me to call the following day but everytime I called they would say they see I've been calling but without assistance. Then lastly they told me to pay R3120.01 (written as R0.0 per month ×10 months remaining) not revealing a month debit order amount but showing the total of R3120.01, the story changed yet before I was told to pay R1283.24, I told them that the person I spoke with before told me to pay such amount but that was in vain. What confuses me is the term contract that vodacom doesn't seem to be understanding keeps on increasing the prices without even communicating then when I want to cancel after so many years of being a loyal customer I was told to pay such a huge amount of money but it's not even my fault that vodacom is selfish and greedy and also a ****. I also have a contract with another network company but when I upgraded recently the installment has decreased and data increased I believe it is because I've been a loyal customer to them unlike the ****ming vodacom I'm very disgruntled. It's either vodacom cancels the contract or we go back to the drawing board and I don't know about the huge amounts of money I've already paid that I didn't sign up for. Actually I want nothing to do with vodacom I want cancelation. Funny part I can't call them anymore they've blocked my number