I purchased New Universal Seat Turntable Swivel for MOTORHOME/VAN/CAMPER/TRUCK UK on the 14/11/24. Delivered on the 17/11/24. I tried to fit the Universal Seat Turntable Swivel. But it doesn't fit. Explained this to the seller. Sent pictures and asked for a returns label. The returns label sent from eBay just has "good luck" , instead of any address. How can I get help? Who do I send it to if the returns label just has good luck?