Maxbhi / Elcotek Telecom — Unfair practice

Maxbhi sended me dysfunction item which they sell as non original replacement part but the items is not for replacement and is a product with manufacturing defects. Nobody in the market sells the following product except maxbhi as replacement part, it's old Chinese stock which was a test item not a replacement and discontinued in the market. Maxbhi is denying replacement or refund as they want to get rid of following and dumping it on customer. I urge Consumer complaints to take action against this unfair trade practice and help me get my money back.
Order #4401318