Yes we have the same issue and there has been no solution on this from apple. Tried many things removing apps, stop testing etc... But none of the things worked. APPLE MUST GIVE SOLUTION TO THIS

Hello Yimon, Apple says that the battery percentage of an iPhone can drop due to various factors, such as the usage patterns, the settings, and the environmental conditions. It is normal for the battery to degrade over time and lose some of its capacity. Apple also says that a normal battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles. This means that if your battery percentage goes below 80% within the warranty period, you can get it replaced by Apple. So, don't worry if your battery percentage drops a little bit. It is not a fault and it does not affect the performance of your phone. Just use your phone as usual and enjoy its features. I hope this helps. Thanks

Hi there Did you found any way to validate apple pay transitions?