Seller approved the return, but eBay will not allow me to proceed due to return window closing Sept. 2. How do I proceed?

Seller approved return, but eBay will not let me proceed. eBay says the return window closed Sept. 2 | Ask a Mentor

Seller approved return, but eBay will not let me proceed. eBay says the return window closed Sept. 2 | Ask a Mentor | eBay Community