Over promise but under perform

I am trying for more than three weeks to get my current pre-paid number (ex-contract) onto an existing data contract for which I am paying monthly, but not using. This will involve my data contract being transferred to a new line contract. Now I do have an understanding of the Covid-19 procedures with lots of people "working from home". When I phone, however, people are either not answering the phone, or they play me like a ping pong ball between departments as if they themselves do not know how to help me or the person on the line promises me that she would get a Vodacom salesperson to call me back. I should be so lucky!! In the meantime, I use my phone a lot for my work and spend a significant amount on airtime because a reputable mobile company cannot assist me. I do have the original order number for this which I got on day one of my tiring journey.