What if Sinopec doesn't open a new invoice?

If Sinopec doesn't issue new invoices, then you can try to contact Sinopec's customer service or counter staff and ask them to issue new invoices. According to the relevant regulations, Sinopec should provide customers with reliable invoices and provide re-invoicing services when necessary.

When contacting Sinopec, you can provide relevant information such as order number, invoice number and purchase time, so that the staff can verify your order information and help you.