Unfortunately if you did not buy online, through us, then you did not buy through us. We cannot validate a purchase in any way. You bought your copy of rFactor from a licensed third-party.
Only those who bought through the TryMedia activation system can request Product Keys from Image Space Inc.
Only those who bought through the TryMedia activation system, or our own Product Key system, can request a Steam Key.
TryMedia activation did ship on some DVD sales. Those can be transferred if they were ever activated, as they can be validated. Un-activated TryMedia sales probably can’t be validated.