Because you are not paying your bills, you may be contacted by debt collection agencies or even sued. (getoutofdebt.org)
Before, and during that time, you and possibly your friends or workplace, have received phone calls from debt collection agencies trying to settle your accounts. (debt.org)
If the latter happens, you'll see a major dip in your credit score and you'll have to deal with debt collection agencies. (mybanktracker.com)