Blocked from doing an upgrade

<p>I've been trying to do an upgrade, an agent did it for me and said that she wasn't sure if it'll appear the following day. I asked the agent if i can do a sim swap and she said yes that is fine. I did the sim swap, waited for the waiting period given by vodacom for it to take effect then finally when the sim swap is done, the upgrade wasn't done. I called back and they couldn't find the deal i'm looking for. I tried upgrading online and i'm being told i cannot upgrade due to a sim swap?????? Their agents a sending me from pillar to post.</p>