I ordered a used piece of equipment. Come to find out that it doesn't work properly and the 30 day return is up. It said money back guarantee. Please help. I sent the seller a message and haven't heard from back from anyone?

I ordered a used piece of equipment. Come to find out that the equipment doesn't work properly | Ask a Mentor

I ordered a used piece of equipment. Come to find out that the equipment doesn't work properly | Ask a Mentor | eBay Community