Uber Eats incorrect charges

Purchased grocery items via the app and was incorrectly billed again the next day on a different pricing structure. Upon query, I was **** to that the charge is just a temporary hold and it will be corrected. Upon investigation, it was discovered that I was charged about twice the correct amount. The support staff claim that they are unable to comprehend or understand the query so it seems that they are ok with *****ing since they lack comprehension