phone line scrambled

So on Saturday I requested that my phone line be upgraded to A DSL line, along with a 2Mb uncapped data package a simple request that has resulted in my phone number getting changed upon realising this I contacted Telkom and queried as to why this has occurred, I was put on hold for close to 45 minutes transferred between 4 different agents who all had no idea why this has occurred and couldn't help me with my issue and that they system is reflecting that everything is okay and they don't know why my phone number is different after speaking to the last agent who told me that she would query as to why my phone number has changed to another registered Telkom and call me back I'm still waiting for the call