Airtel — [protected] data validity not extended, next validity plan activated early

My number [protected]

I baught 301 pack 50 gb data today morning

So the data validity is mapped to my active plan which 239 which will expire in 4 days

So i subscribed to a 99 smart plan

Problem 1: is 99 plan has been activated immediately when other plan is active. It should get activated after 4 days post current plan expired

Problem 2: 301 data plan validity should get extended to 99 plan end time
Please fix both problem