Billing not accurate

Worst experience ever, they should explain the promise to pay process to people because, they are opening two accounts which at the end you won't be able to pay for. January and February 2026 I missed my payment of R555 which was then R1110 by March so 23 March i paid R1615, plus R233 promise to pay on the 23 March then another payment on the 26 March R233 which is a total of R2081,yesterday Tuesday I decided to contact their support team to change my payment date from 25th to 30th they changed it to the 1st, after changing it now my account is saying overdue by R555 to be paid by 1st May 2026,yet they switched off their data. I'm very much disappointed in rain. 2023 there was armed ******* I asked them to cancel my services as my rain router was ****** they declined,the bill kept on pilling. Now I'm paying for the data I didn't use they say it's an installment, I should have just left it like that and took my R2000 to open a reliable data offer somewhere else. Mind you I'm not working I try so hard to pay but they keep on disappointing. There are hidden cost we don't even know about.