Vodacom sim swop - Charged R180

I went to Vodacom yesterday to do a sim swop as I lost my phone two days before and the salesman wanted to charge R180 for a sim swop. When I queried it with the salesman at the Vodacom shop, that a person can do it themselves for free, he mentioned that he was aware of that. We just needed assistance to be able to do it. Instead, we have no other option than going to Cell C now, because to do a sim swop at Cell C is only R11.