What if you receive a summons for unpaid credit card debt what do i do?

Immediately contact your credit provider, apologize for the situation and ask what you can do about it. There will be a solution, and they would much rather you work with them to find this solution rather than bury your head in the sand and hope the debt will go away. It won't. With luck you'll find a way of explaining how you've let the matter reach the summons stage.