Increased my subscription by R180 in a period of a few days.

Metrofibre I trying to **** me to pay more money. In February I received an email stating that the subscription for my fibre will increase by R80, I comp**** and proceed to pay the increase from R749 to R849. Now they suspended my line stating that I owe them R333 because my subscription was R929. Which I wasn’t aware of because all email proof correspondence I received from them stated that I will be paying R849. Now they claim that Vuma had another price increase in may and since my promo subscription of R749 ended in February I was already paying R849, so with the new may increase which wasn’t communicated clearly to me I was told I must pay R929 and the R333 which I am owing. Since I was paying R850 since February which also doesn’t make sense since the increase was only meant to be in may. So with the back and forth and them contradicting themselves. I opted to cancelled. Now I have to wait until the 18th of July without internet. They are holding me ransom and I can’t even sign up with a new line with someone else because they have suspended it.