opt for the option of continuing to accumulate as the goal will reach 500 points..in the end it is a reservation that you have in points

Have you noticed or is it just me that when I have the necessary amount of points to claim a coupon, the coupon disappears? There was a coupon for 2$ and it no longer appears, before that there was one for 1$ that I could claim if I had 100 points, but every time I complete an amount of points the coupon disappears and I have to wait to see if I can claim the one for 3$ if I complete the 300 points.