Vodacom misleading

I went onto the Samsung site to compare phones and decided on the A51 as it has a dual sim. I then ordered the A51 from the vodacom online shop. After receiving the phone and opening the slot for the sim cards, I realise that it is a single sim phone. I queried this and was then told that Vodacom disables the dual sim function as it is a security risk. NO WHERE do they mention this. Not on there site, order confirmation or packaging! If I knew this, I would have migrated to another service provider and now they can't help me because I upgraded already.