Question unclear ... as a Seller, eBay will automatically issue invoices and payment reminders to Buyers >
https://www.ebay.co.uk/help/selling/getting-paid/resolving-unpaid-items-buyers?id=4137&st=
https://sellercentre.ebay.co.uk/news/2021-march/order-cancellation
As a Buyer, use your Purchase history order details link/s to make payment through eBay checkout.
