How do I change my store from one shop to another?

Web site or google location

Call your store or go on their website

Call your local store to find out how.

It should ask if you want to share your location if your using your smart phone. If you select yea it will locate the nearest store other wise there should be a menu on the stores homepage to search for the closest store.

I'd try searching for locations and from there you should be able to save.