What happens if you don't pay a bill in Sweden?

Sweden's Enforcement Authority is responsible for collecting unpaid debts, fines, and declarations of bankruptcy. So, what happens if an unpaid bill reaches the Enforcement Authority, and can you do anything if you have a black mark on your record?

What happens if you don't pay a bill in Sweden?
Sweden's Enforcement Authority is responsible for collecting unpaid debts, fines, and declarations of bankruptcy. So, what happens if an unpaid bill reaches the Enforcement Authority, and can you do anything if you have a black mark on your record?