Dissatisfied client

Cell C has been providing me with very bad service these days not sure why. I have been paying close to 4000 on monthly basis for my contracts without default. I had financial issues in August and defaulted, my line suspended. My phone was grabbed in randburg on heritage day n my sim lost n when I phone they advised can't do sim swap as I am in areas. I asked them to debit immediately they said it will be debited on 25, spoke to agent n supervisor who confirmed debit order in place. Today no debits went off. I phoned one in competent lady n she said it's processing. From 12 to 7 pm money still not off my account. 10:30 phoned n they advised me there was no debit order loaded. What incompetence my frustration my number has been off for 2 days n I have lost a lot of business. This is gross incompetence sending me from pillar to post