R56 chrarge out for hot water

I was driving to KZN passed weekend, and had an early morning so my wife and i ate at wimpy volkrust MP, on our way we realized that the flusk containing formula water for our 8 month old baby is low, this is when we passed at wimpy vryheid junction to ask for top up of hot water.

i was approached by the manager and she refused to give me warm water to fill up the toddlers flusk and told the only way she can give me water is if i buy 3 regular cups of tea and she will pour the water in the flusk, i then told her the water is strictly for the baby and even so how can a restaurant refuse to give me water?? especially at the middle on now where, i thought she would understand as i saw she is also expecting one.

I was charged R56 to fill up a flask of a crying baby, in the middle of now where and 400km to go to my destination.