Redeeming Gift Card From Assembly Meeting

I cannot find this caption for redeeming my info for a $10.00 gift card from a meeting I attended today, Oct. 22, 2015 explaining Medicare advantage plan. http://thankyougc.com/aetna. It does not come up anywhere, so I cannot find, I cannot redeem it. Help.meeting was in Northfield, Ohio at Dolphin restaurant, with rep. John Avon. Thank you, Janet Jerman If it is so hard to find this answer, how hard will it be to get a medical answer????