If I redeem a gift at 25,000 Crowns, will my points balance revert to 0? The old scheme enabled me to redeem a gift at each eligible tier

No - gifts are no longer at set tiered points. The programme now has a variety of gifts with different Coutts Crown values. For example, if you have earned 76,000 Crowns you could redeem a reward worth 30,000 Crowns, leaving 46,000 Crowns to either redeem another gift valued at between 25,000 to 46,000 or continue to save