<prompt> Human: They advertise 1.25 miles per 1 spent, and 20,000 miles if 1000 is spent within the first three months. I figure if I sign up for and am approved for one, I can just use it to pay for absolutely everything, and simply transfer money to it from my checking account once a week, so as to avoid interest charges.This almost sounds too good to be true. Is it?  <response>: Nope, its true. You only have to pay it once a month actually. Always pay it in full though. 