FBM Sellers: How quickly do you respond to customer messages?

Remember this part:

I have the app and usually answer quickly, but more than answer, I’ve become very good at hitting “no response needed” before answering. That case if I get a “why is your red product red, I wanted yellow, not red” message, and I “forget” to answer it, it doesn’t matter if I do eventually answer it on the 25th hour (which I’ve obviously never done)