Not looking to rehash (I've suffered enough) - In short (or not so short), I purchased an old christmas train set from the seller, the connector wires to connect to the live tracks (which were said to work perfectly) were completely frayed, and not functioning. After a back & forth, partial refund suggestion, they didn't follow through. I opened a return request, needed to escalate, and returned it. They received it, ending up insisting that i either "accidently" switched them with another set (in which case, could I send the good ones back to them), or I did so on purpose (which would require them to open a case against me for fraud). I tried to explain that the plastic casing on the old wires become brittle and crumble very easily, and must have done so in transit (the box was filled with the broken wire casings), but they refused to accept that as a possibility (and would not stop accusing me).