I just cashed a $68 check from yahoo that I vaguely remember signing up for at some point in my life. I fill the forms out and never expect anything, then one d

I just cashed a $68 check from yahoo that I vaguely remember signing up for at some point in my life. I fill the forms out and never expect anything, then one day I'll get a small check out of nowhere and each time I'll be surprised by it