Have you tried calling the Store Manager?

This would be the fastest and most direct way to get some traction on the situation, honestly a lot of folks dont look at their emails which is what I'm assuming happened with the late responses from them

When I started I would talk directly to my store manager!

try calling the manager/store! and you definitely didn’t reply too late, i replied to my interview offer 2 months after because i didn’t even see the email, and i was still hired. i hope it all works out for you!