The worst company ever Stay away Please!!!!

Worst company ever I honestly regret signing up with this people. The worst customer service ever, they are inconsistent and un caring from the start of this subscription which was in November last year I had no joy from them I would not advise anyone to fall for their clever marketing and tricks to get you interested in their services. So my story is my subscription is R1020 a month for 2 phones when I get the invoice it's always different from what I am supposed to pay. So on Saturday I received a invoice saying that I must pay R2040 on the 20th of May. Then Monday it's a different story so Yesterday I get a email saying I'm going to be charged for *****ing their phones which I have been paying every month without fail and I have 5 days to pay R10200 which I don't know where they get from.