If buyer does not accept the review modification offer within 5 days what will happen?

[mithundebnath]

if buyer does not accept the review *modification offer within 5 days what will happen ?

[taverr]

It is perhaps 48 hours / 2 days, not 5 days.
Btw as per your question -

1. The review that the buyer left, now cannot be changed by anyway.
2. You cannot send another “Review Modification” offer.