BP Complaints

I would like to make an official complaint about the BP gas station located at 2000 Haines St, Baltimore, MD 21230. I was at this station Sunday, April 21 at approximately 4:30pm and the service worker behind the cash register was extremely rude and disrespectful. I had questions about the BP gift card I was using - he told me I had a lesser amount on it than I actually do - and when I attempted to clarify he became rude, disrespectful, and even decided to brush me off mid sentence and walk away. Someone needs to talk to this guy about customer support. I realize this is baltimore so the hired employees are starting from a low point when it comes to overall social correctness, but this was unusually absurd to deal with.