Replying to FullTilt not heat-molded correctly?

Hi I bought some Seth's couple of weeks ago perfect fit snug fit all around etc.
This was the first boot ever that I've gotten heat molded so I didn't know anything bout it.
The tech was busy so some new guy helped me , I didn't care much because I didn't know shit about molding boots correctly etc.

So first day of riding on a holiday after a few runs i can feel my feet move in the boots , my ankle isn't locked so I'm sliding little bit forwards and backwards all the time , so I tightened them up to a snug fit to somewhat stop my feet from sliding and then this terrible feetcramp kicks in  at the end of the day. Couldn't walk normally in my sneakers for 2 days.
Also there is a little room between my legs and the tongue so after landing a few backseat I get this terrible reversed shinbang or whatever pain in my calves and the sides of my calves, I still can't run properly today after 1,5 of not skiing.

Now here's the  thing; I think the newguy didn't mold my boots correctly , the buckles were kinda loose  when getting them heat molded and the strap wasn't set tight enough to close the gap between my skinny legs and the tongue.

This might be a no-brainer but can my feetpains be solved by getting them reheated or is there maybe another problem?

I didn't contact the shop yet, not getting out for skiing until mid Feb so it's not really urgent atm. besides the shop is far away and they'll reheat costfree anyway so I'm askin for some opinions on here thx