Entire weekend without using phone!!!

So i've been calling mtn forever since yesterday trying to terminate my contract and convert to prepaid. First of all i waited an hour before the phone was answered by anyone then i was transferred to Cancellation department only to be met with a recorded message that they are not available. It took another 3 calls of 30 or more minutes waiting to talk to someone. I was then advised that my request will be forwarded to them to call me back today (20 March) otherwise if i don't receive the call i will receive my airtime and data tomorrow (21 March)as i usually did i must just not use it the entire weekend and wait for monday for the transaction to be reversed. That will require that i don't use my phone at all for an entire weekend!!! So i called again today , again it was a long wait! I was told the entire department is not functioning due to technical difficulties they been having the whole week. Really??? Such a huge company with no backup plan! I am appalled to say the least! Watch me use my phone over the weekend and block your debit order come month-end! Watch me! Then i am porting my number to another service provider!