Vodacom poor service is standard everywhere

I have a wifi router of (contract completed end of June 2019). When I wanted to use this with prepaid data, I found out that it was locked to only be used on the Vodacom network. On 3 July I therefore paid R150 at the Middelburg Mall to have Fortune unlock it. Yet when wanting to use it that evening it still did not work. On 4 July I went to Cresta to ask a very unfriendly technician there to see what the problem is. He said there is no problem, it is unlocked. Cresta apparently does diagnostic tests but it was not offered even though I told them it does not work. On 5 July 2019 I went to Clearwater Mall and Kabelo informed me that the wifi was never unlocked. The wifi still does not work with the Cell C sim – the cell C sim works on other wifi units. So Vodacom made me pay and because they don’t know what they are doing in all their shops, I still don’t have a wifi which works.