Welcome to the community. You've come to the right place if you want advice.
First of all, pictures is of the essence. We can then ID the frog, which is very important. When we know what kind of frog it is, it's possible to adjust the requierments (if they're a bit off). Make sure you also post pictures of the terrarium, since a proper habitat is of outmost important when it comes to keeping frogs.
Second of all, I would not trust what the petstore said. There are some knowledgeble people working in petstores, however they are far too few, escpecially when we're talking big chain stores. So, they might be correct, but the might be completely wrong.
Thirdly, if the frog have been moved, he/she might still be very stressed and needs to settle down. Give it time and make sure you're not disturbing her. Frogs are NOT cuddling pets and they're best of left alone in the enclosure.
Hopefully I (and others as well) can give some better advice after you post some pictures. Best of luck with your frog!