Confused on the buying process

Hello! I'm new to offer up and I bought an item that will be shipped. The seller marked it as shipped and I received the tracking number. However, my bank account has not been charged, so I haven't paid for the item yet. The item hasn't had a label created yet. What do I do? It's been a week....
I don't know for sure but it sounds like they possibly haven't charged your account because the item hasn't shown any movement within the sellers 3 day shipping period.