1000 limit is not per day, it's per txn, capping is only per month
And please link the post explaining bonus you are referring to
Choose Debit Card. Then read this point.
1. This construct is applicable from 1’st May 2024. Capping of 1000 reward points per transaction applicable, subject to overall capping of 10000 reward points per calendar month per Customer ID including Birthday bonus.
So as B'day bonus is 2X and per txn is 1000 pts max. So Rs.50K txn = 500+500 = 1000 pts. I can't confirm right now as no birthday near. But it can be 1000+1000. Only those who have received can confirm. To be on safe side I use 50K max per txn.
In birthday month one can't cross overall limit of 5 Lakh in month as for that 10000 pts will be provided. Other months you can go to 10L max if no campaign also there.