Your debt validation request must be in writing received by the collector within 30 days of receiving the debt validation notice from the collection agency. (debtsettlement.com)
Once the debt collector receives your debt validation notice, they must stop collection activity on your account. (debtsettlement.com)
Then this new collection agency called ABC Collection Agency sends you a collection letter but you either trash it, or don't respond to their 30 day validation notice to «validate the alleged debt», then ABC Collection Agency has the legal right to put a new negative listing called a «collection account» on your credit reports. (mycreditsolutions.com)