Can geeksquad at best buy unlock my iphone 4s for me?

I have 200 dollars store credit and i'm just wondering if they can.

LOL, I doubt they would do that. I suggest you get a factory unlock rather than a jailbreak which I would assume is what you were wondering if geeksquad did. The problem with jailbreak is updates will affect the unlock. If you get a factory unlock from sites like iphoneunlockedcheap.com they are permanent and updates will not affect them.