Free Gas For A Year

Yesterday, I sent this message to SuperAmerica corporate contact.

All of your SuperAmerica stores have signs that say, 'free gas for a year.' I would like to get my free gas. Can I just fill up and leave, or do I need to 'check in?' I am ready to start receiving my free gas as your advertisement states. Also, is there a limit; like 10 gallons per day? I will need to know that.

Thanks,
CuTRis

So far I have received no response.