If you cannot locate your transaction on the Bitcoin network, we strongly recommend searching for it in a block explorer such as https://explorer.bitcoin.com/. You can also use alternative bitcoin client like Bitcoin Core and check with the blockchain using an API like https://blockchain.info/balance/send
Why won’t my BitPay invoice show up if I don’t accept bitcoins?
BitPay does not mark invoices as non-final until after they have shipped or been paid by their recipient, whichever occurs first. If you receive a partial payment from your order before the invoice has been marked final, please email email@example.com and we will help you resubmit your invoice with proper information so it may be processed and paid to its intended recipient once BitPay receives notification that your bill is complete and ready to ship out.