
Give me advice on what should I do about this purchase
This is eBay UK. I got the Singer MagicMemory off of eBay which was advertised as complete and "in excellent condition". It was advertised for £180+ shipping, I offered £160 and got immediately accepted,. bringing the total (with shipping) to £173.
The machine arrived very poorly packaged, the carriage stopper was not installed for transit (but weirdly included in the accessory box) meaning everything inside was just sliding around. Multiple needles were damaged but I bent them back into shape with pliers.
I had to get the batteries which was a £10 extra, and then I realised the needle selection mechanism was broken. Needle 4,6 and 12 were not moving when they should. I actually ended up opening the machine and finding the fault. A plastic part was crumbled and 2 connectors were misaligned but one completely broken.
I reached out to the seller and they claimed it was working perfectly before and that it must have been damaged in transit. While I agree the needles probably did get damaged in transit, I think the connectors to do with needle selection must have been broken before. I asked if there is a proof the machine worked before and the seller said they "have a 20min video proof" that it did, but when I asked to see it they didn't reply.
I said I want to return and they initially said they will be taking it up with eBay but then accepted the return request.
I reached out again offering £50 for it. Basically I said, look the machine is broken and I know a fix but I will need a soldering iron and it took me a day to understand the fix. I think £50 would be a fair price for it. So I want a refund of £120 (since I paid £173 incl shipping). So far I haven't heard back, but I am wondering how I should proceed. Basically I like the machine but I think it's not a fair price for a broken one. Do you think the needle selector electric cables could have really snapped in transit? I think the seller is claiming they tested it but they didn't. Should I just return it? I don't know what to do