My husband's Capital One's went into collections after he lost his business and we had to simultaneously care for two ill parents. It went first to RAB, then to Blitt and Gaines. We sent 4 letters (certified, return receipt) to them requesting a copy of original signed contract between them and Capital One authorizing them to collect, as well as copies of statements, etc., but received nothing. We don't dispute the existence of a debt, just the amount and payee.