A N Associates review: wireless charger

When I ordered this charger I was told it was for an I-phone 7. However it did not work on my phone which is an I-phone 7. It did work on my friend's I-phone 8. I would appreciate some paperwork so I can return this charger for a complete refund. I used paypal to pay for this charger.
Please do not advertise this product as working for an I-phone 7 as this was false advertising!