I want more info regarding billing

I am waiting on someone to contact me because I send them an email yesterday regarding my billing. I am copying the email here. Maybe someone will respond here.

Good Morning,

I trust you are well and still having a good year so far.

Is it possible that someone can contact me please.

I need someone to explain how the billing works. I was under the impression that I am paying a set amount of R529 monthly. On the 25th November R529 was deducted from my account. In December I kept a bit more in my account for the R529 to go off, just to see insufficient funds due that R1005 was supposed to go off. What was the reason for the R1005 if my amount should be R529. This morning R264 was deducted from my account.

I am totally lost.

I really enjoy having Rain but I don't like the inconsistency when it comes to the billing?

Please call me to explain.

Kindest regards, Maureen