Spirit Incentives, Gas Up America Rebate ripoff Fort Lauderdale Florida

This is the second time I have had the same experience with Spirit. A few years ago as an incentive to visit a vacation condo we were given a free gas coupon. I only received 1 $10 check and gave up after submitting 2 or 3.
In the spring of 2008 we again were talked into visiting a timeshare resort and received the same free gas certificate. This time I've kept photo copies of the coupons and gas receipts. I've submitted 2 so far and have not received anything. Today I looked up their phone number and after a few calls I was able to speak to a customer services representitive. Once I gave him my voucher number and I told him I had photo copies of all documents, he immediately found that I had in fact submitted two receipts for payment. He made a rather vague comment about the date was entered incorrectly and he would fix them and process for payment. I was told that it could take up to 6 week. I will take the advice of other Spirit Incentive scam victums and follow up in a couple of weeks.