Billed after cancelation

Last month I complained about billing but 8 canceled and I thought the issue was resolved because my line was immediately cut as 8 mentioned I had a new contract with a different network because of rains bad network and bad customer service.

Now I have been again billed R165? On top of the R319 which was explained that billing is post something something but in a nutshell I'm billed after use now what am I billed for this month again when I thought we were all done?