Telkom-Mondo contract phones

I would like to warn people about Telkom cellphone contracts under Mondo. I was called by one of the agents/consultants to offer me a contract phone which was eventually delivered in December 2021. Thereafter I had an issue of not being able to connect after inserting the new sim-card that came with the phone. Only to discover after a few months that the number allocated to me belonged to someone else. After visiting Telkom outlet to fix the issue as I couldn't win over the phone, I then started having issues with the my account being deducted any day of the month with a different amount every time. Now recently I was served with a bill of almost a R1000, stating that I am in arrears. Mind you, my contract is supposed to be R225 monthly. I have been calling ever since and to make matters worse, they have locked the services. I have screen grabbed the transaction from my phone to show the debit order of the monies taken by Telkom to prove that I have been paying. Instead, they deducted R500+ saying it's a part of outstanding balance....