Wonder Hearing Aid Hearing Aid Internet

Purchased this hearing aid trough Facebook Ad. It did not come with any care and use instructions, I was charged more than the Ad indecated and then I was charged for another one a month later. The hearing aid it self is worthless, it has a hollow ringing sound, the only adjustment is loud and quite and sharp sounds seem to be triple volume. I tried to contact the seller their phone goes to endless hold. I sent an E-mail, it was returned/reported as "Undelivered, no such address"