Burger King complaint: Extra chargeRude staff speaking in Spanish

My grandson and myself were at this location yesterday (Aug 25). My grandson ordered the The Impossible Burger meal which came with its Medium fries and drink. I just ordered a small fry. The young woman who took the order seemed distracted and kept chatting with other staff in Spanish. She did not pay attention to my order and kept asking me the same thing. Anyway, after I left the restaurant I noticed that she had charged me a medium fry for $3.29.
It is none of my business if she spoke in Spanish with others outside. However, this is an English-speaking nation and almost all clients understand only English. I think the staff at this location must be trained to treat the customers right, pay attention and not speaking in Spanish.

I demand refund of $3.29. I will think twice going to Burger King, where service is getting to be shoddy at best.