Being serious for a moment,

This is likely to go in circles for some time.

It is time for both party to state their postition and decide to resolve, leave it at a dispute, or take it further.

* What does the purchaser seek? Does the purchaser request a refund, or a supply of proper pads?

* What does the seller offer? Does the seller stand firm in belief that the correct product was supplied, or will a refund or correct pads be supplied?