They called you without sending you a letter in the mail? If they sent you a letter you had 30 days to respond to the letter. I would send the collector a letter of dispute ( how did you cancel the account and if you did cancel it why would you try to access the account?) and in it put a cease and desist sentence to not call you or anyone and for this day forward all communication must be done in writing and by mail. It is all based on the proof you have that you canceled the account, if not it is you word against there. Remember, many hosting companys have an auto register for the 2nd year and if you did not click on the section to not re auto any domains then you will owe them the money. For 20 bucks I would pay 1 & 1 and not the collector. You need to check your credit report as well to see if they already started reporting it. Get them a letter ready and let me know if they sent you a letter in the mail and when.