Dual Sim Locked for what? Stupid. Tell me before I pay for ****

Bought a P30lite at Scottburgh Vodacom shop as had my last phone ******, had a spare sim which I used till could do a sim swap, got my old number back and wanted to use both sims so all my contact can reach me, but found that my second sim wont work, called Vodacom shop and was told to come in the shop when I got there was told all Vodacom phone are not daul sim yet when I bought the ****** phone no one said **** to me about that, then they said its on the box of the phone got home checked the box nothing about my P30 lite being a single sim phone. All in all I will never buy anothing at Vodacom again and will make sure that any one I know don't buy from vodacom