Account Resolution Services ( ARS ), used communication tactics in the beginning by blocking my number, blocking me from online access to a debt that I tried to research, when asked of them to verify my debt. Also they tried to get me to identify myself over the phone without giving me the opportunity of verifying their company. I wrote them a DEBT VALIDATION LETTER, and they did not validate my debt through the original debtor and mailing me that information so they violated Section 809 Validation of Debts [ 15 USC 1692g ] Chain letter by dates are attached with mailed signed receipts.