I have a question.

I had my 2nd interview last Wednesday with the GM of the store. It went great and I got a call 2 days after offering me a job in home theatre. The lady told me they would be in contact with me to set up a time to fill out paperwork and what not. Its been a week and I have not heard back yet. Does anyone have any recommendations?  Should I call them? Or be patient? or does anyone have any other ideas?

Just wondering why they would offer me the job, then wait so long to set things up