My experience was decent, but it is true that you had to way 20, 30, and even more than 45 days for the rewards transactions to process. I still have some pending rewards that were never posted to my account (for about £42), all for Booking.com.
The Curve Rewards tab will go away in the app:
Curve cancels Curve rewards: What we know
Curve Rewards Cancellation Announcement
We want to give you a heads up regarding a change which may impact how you use Curve.
Last year, we launched Curve Rewards in Europe to make spending with Curve more rewarding. But the experience has not lived up to the standards you expect and deserve from us. So we’ve decided to wind down the Curve Rewards programme in the EEA by March 9th 2023.
We will keep working on new and improved rewards programmes which we hope will have a bigger impact and better user experience.
From March 9th, many of you will notice that the Rewards tab will no longer be available. Customers who have rewards pending will still receive their tracked cashback and will also still have access to the Rewards tab. Once this is no longer applicable, access to the Curve Rewards tab will be restricted.
If you are on Curve Black or Metal, you’ll still be able to enjoy our 1% Cashback at selected retailers.
Our goal is to launch an unbeatable rewards program in the future, and we’ll keep you updated on any upcoming plans.
Please don’t hesitate to contact our support team if you have any queries regarding these changes.