Had my best ever sub here, top notch!

I asked for a 6 inch BMT, I was served by a girl called Maria or similar. The service was rushed and TERRIBLE even though it was not busy. My sandwich was slapped together, torn, and generally VERY POOR! This is not something I am used to when visiting your stores and has really annoyed me. When I stated at the till I was not happy with it, I was ignored, thrown my sandwich and the next customer was attended to. VERY UNHAPPY!!!!!