FICA for what??? I can't use my card....

No warning at all!! Get to the teller to pay for my groceries and I get told my card is declined! How embarrassing it is. When I got my card, a copy of my I'd was given. Why didn't you FICA my account then?? This is utter bull****. You guys better not charge me for the declining swipe. Because then there is going to be ****!! How the hell must I get to work if I can't use my card!! If this isn't sorted out. I am changing banks!!