Pregnant wife not allowed water

I was at fourways mall dischem this afternoon at 2:45pm Sunday 15th August to buy a few wet wipes, as we expecting a baby and my wife was told my the security guard Jack standing in the kiddies isle to leave the store, as she lowered her mask to take a sip of water. I spoke to the store manager Tshepiso and he told me there is a sign at the front of the store that no drinking or eating in the store, I mentioned to him that my wife is pregnant and needed a sip of water and he mentioned that unfortunately those are the rules, and the guard was just doing his job. Dischem guards are saying pregnant woman aren’t allowed water.