Yesterday when I went to Stewards for my lunch bre...

Yesterday when I went to Stewards for my lunch break as I m on the front line, my cash payment was rudely refused, I was made to feel publicly humiliated by a very bad mannered worker. This was against the law, as money is money regardless of where you go to spend your hard earned income. You can use money in your other parts of your shop just not there. Why??