Taco Cabana

I just received the worst service of MY LIFE. The taco cabana in Allen Texas address 810 Stacy Road Allen tx. I went inside used the restroom and came out to order. I get to the register and order two bean and cheese tacos( which i also do) and the guy runs my card he said declined. I thought that was strange didn't pay attention to it so i pull out my American Express card that one also declined.( now I'm worried) Then i pull out a capital one card and that one too declined. So i use a gift card that one also declined. I explained to the man i have money on all four of these cards I'm confused. The man at the register stated "that it worked before i came here its my card". So i leave out upset, and worried. So i call my credit card places and they all said fine. I go to race track next door to the shopping center which the taco cabana is located and do four separate transaction for some candy and they all worked so i was relieved but sill embarrassed. so i call up to taco cabana and proceed to complain. the "manager" on duty hung up on me three different times and told me it was my cards. is this how you treat people? if so i dont need to ever return. I was humiliated and my cards actually worked. I will never go back. IF you track my cards you will see i go there at least once a week and order the same thing. there is nothing but high school kids that work in there and they are extremely rude. THank you taco cabana for defaming my name and making me ashamed. I would have been ok if he would have said its a system error. but he didn't. Im filling a BBB complaint you guys care nothing about people.