Bad service

I went to Checkers at Eldridge in Boksburg to buy some Maynard's sweets, because on the special it said assorted sweet gums, I took fruit tubes and fruit pastels 100g.

When I got to the till (4) the lady called the Manager (Maduba) she came and said only the 2 jelly sweets is on special, I explained to her that the special said assorted Maynard's sweet gums 100g was on special, it doesn't specify only jellies.

She embarrassed me and my family infront of all the other customers, and didn't wanted to give us the special, this is unacceptable