I am trying to place my new product into the product registration and warranty section but when I attach the receipt it refuses to accept it. That is likely because this is a product you replaced that I received Jan. 13. There was no receipt with it I assume because it is a replacement pad for the fault pad I originally received. So I put in the October receipt for the original pad. How do I proceed to get the new on registered? And do you have instructions as well as a mailer for returning the faulty pad?