Mail in Rebate help?

[DC]

I don't know how mail in rebate works. Could you guys explain how it works? I never done it before. Also, there is day limit. Is that limit is for when i bought that product? For example, if main in rebate is 9/22 and i bought it at 9/21 but i send rebate like 5 days later, do i still get rebate?

[Canada EH]

You jump through their hoops and if you dont cross a T or do an i you dont get your money.

If you do it 100% you get your money back in a few months time.