Angry and Frustrated

I am so frustrated with the incompetency from Telkom. I went into the store to cancel my contract and my number was supposed to be moved to prepaid. As I write this I have not been able to use my number since Wednesday last week. I have phone 20 times into the call centre and have been told in 24 hours then 48 hours then few hours my number will be sorted and guess what nothing. I have gone to the store they cannot do anything. I'm so angry and frustrated I don't know what else to do