Incorrect account leads to termination of contract

Telekom was very fast and helpful to open account and install their product. Thereafter the invoices were delivered to the wrong address and invoice pricing was incorrect. Eventually my February and March accounts were in arrears but I setteled them on the 4th of May leaving only the April amount of R400 outstanding and Telkom still suspended all my services at the beginning of May, in the meantime I have also been handed over to a dept collecting company for one account being one month late. I went into a store and they told me to phone 10210 on an telephone that has been suspended,so I had to do it form work. The recording instructed me to send an email on an ADSL line which is also suspended regarding my complaint. Due to the bad service I have terminated my account, and will use another provider in future.