Towne Pump

I have been getting gas from you guys for 2 years i do the same thing each time i use 20 $ to fill my car up for the week with 20$ and it fills it up each time so then i dont have to put gas till next week so today at 1:30 i went to your gaa station and said 20$ reg please they put it and it said 6 gallons for 20$ i turn my car on and btw i have a brand new car nothings wrong w it at all its a 2018 so any woo i turn my car on and my gas tank didnt even fill i asked the worker which was a man he had no name tag on why it didnt fill it up and to check the pump to see if something wrong and he didnt he pretty much told me he dont know what to tell me so i wasted 20$ at your gas statio n and i dont think i will ever be atteneding again service was not good and thats very unusual so i had to go to another gas station i put 20$ and i filled right up so you guys might wanna check pump 4# at your gas station cause im not to happy about losing out on 20$ and again ive been getting gas fron y'all weekly and have never had this problem.
Sincerely, Customer