What happens when a buyer accepts the delivery extension AFTER the new requested date?

[chopperbricks]

Hey there,
I'm in a peculiar situation: A few hours before delivery, I realized needed a couple more hours to finish a slow render, so I sent a request for an additional day. The thing is, it's the weekend and the client isn't responding. If they accept it tomorrow on the 18th (so past the new date I requested), what happens?
Somehow after 2 years on the platform this isn't a situation I've come accross...
Thanks 🙂

Edited March 17 by chopperbricks