Ready Travel easy incentive Scam Irving Texas

I attended the program. They offered 2 round-tripairline tickets, 2 nights hotel and 3 day car rental. Their employee told us to mail the voucher in and they would mail us locations and dates of where we could choose to travel & then we would need to mail in the deposit. We followed his instructions exactly as we were told. We recieved a voided voucher back due to not sending it certified and not sending a money order for the deposit. How are we supposed to know how much the deposit is suppose to be since we don't even know our location? We received our cancellation letter on the 22 of May and "Activation failed due to NOT received via Certified Mail and no deposit, that they bound by the Terms & condition" however I could not find In the terms & conditions where it said to send it via certified Mail. I guess that was the only excuse they had to cancel my activation. All it said on the Activation form was to complete form and mail to: Ready Travel & Incentives,PO Box 167983, Irving, TX.75016. There was also no phone number to call with questions on the return voucher.