Like many others, I was offered $150 on Sapphire Reserve about 90 seconds into the call. The agent said it would post after a while (I forget, maybe six to eight weeks), but it posted after four days. That's the real point to this post.

Pertinent to a different thread, the agent cautioned me that the retention offer would not satisfy a required minimum payment, and I should be sure to make such minimum payment. (Even after the retention offer, there was a balance due. I pay the balance in full each month by auto-pay, which did take the correct amount, which was more than the minimum payment and resulted in a balance of zero.) Since I had received a large credit on another card with a balance due, I asked about that other card, and was assured that no minimum payment would be due. Why? I don't know, and the agent did not give an explanation that I understood. Maybe it was because the credit more than offset all the charges, leaving a credit on the account, but that seems to contradict the issue in the other thread. (I did follow some of the advice in the other thread and set up an alert to notify me if a payment was missed, and received no alert.)