The Greater Tzaneen/Letaba electrical account saga

WOW, what an amazing cluster #$%#. Our account jumps every month by 30k-50k. No one can give us an answer why . I am actually sending in the electric and water meter readings to them myself every month , although they are paying some company to actually do that job (which they are not doing ) another tender mishap. then they charge us interest on these amounts which I refuse to pay . We are a household of 3 people ... should not have a 70K bill one month , then 30k the next , then 50 k the next . on top of it all ,they are forever closed due to covid and then you have to stand in numerous queues to try and get and answer ...or rather covid yourself and then they give you a shrug of the shoulders and send you on your merry way