I've recently started a new reselling business in April and have taken the business from $2500/month to $12k/month I have a buyer that I sell all of my items to and I usually just PayPal invoice him and ship the items once payment is made. Typically the value of each shipment is around $2000 The business started getting traction and taking off the last 30 days and I've decided to send off a $7k package to this buyer to get paid upon delivery to avoid the PayPal fee. Package was delivered yesterday around noon and still no payment or update from buyer. I don't want to come off as annoying but like I said, the business is growing fast and I need more cash flow to keep up with the leads/repeats. I don't expect to get paid until the weekend is over which isn't ideal since I've had more leads come in and I can't fulfill them all because of lack of capital. Any suggestions on what I should do?