I thought I knew how the sign-on bonuses worked, but a friend of mine showed me I was wrong. He signed up for a credit card that offered 75,000 points if he spent $3k within 3 months. In the first month, he spent $6.5k. A whopping 150,000 points was transferred to his Qantas FF account.
Is that how the sign-on bonuses worked, i.e. every $3k (or whatever criteria they imposed) you earn the full sign-on bonus, so theoretically, if he spent $9k, he could have gotten 225,000 points? I did verify that he was not pulling my leg when he told me. He actually did get a double sign-on.
Can someone confirm?