To sum this up, on the paypal payment I sent him, it clearly stated that it was a payment for the FIT4 DAMPER, which I think should be more than enough proof to my cause.
Again, I'm not a lawyer, and the following should be taken with quite a few grains of salt, but I'm not convinced that that part is of major relevance, as you would have been free to enter any payment info you wanted. At best it can act as supporting evidence of what you wanted to buy. What probably matters more is that the item doesn't match the images on the sales page. I would advise to document the bing cache I linked via screenshot and print, ideally through a third party acting as witness. Checking and documenting any older communication that might reference the original description would be prudent, too. Asking the site admins for details about changes to the item description would also help.
My best guess is that your standing largely depends on the outcome you're going for and whether you regard the sale as faulty or invalid.
If the transaction is considered invalid, because the seller and / or buyer entered into the transaction under wrong assumptions, the typical remedy is to roll back the transaction. The goods go back to the seller, the money gets refunded (not sure if the buyer has to actively send the item back, or if it is sufficient to make the item available for collection, also not sure who pays for the shipping). As rolling back typically expects the item to be back with the seller before the refund, a minimum of trust in the seller is needed, as a malicious seller could try to keep item and money.
If the transaction is considered faulty, the buyer has one of three remedies if the seller fails to correct it:
Rolling back the transaction: The goods go back to the seller, the money gets refunded (again, not sure if the buyer has to actively send the item back, or if it is sufficient to make the item available for collection, for a faulty item the shipping costs are usually on the seller). As rolling back typically expects the item to be back with the seller before the refund, a minimum of trust in the seller is needed, as a malicious seller could try to keep item and money.
Discount or partial refund: The buyer agrees to keep the item, the price is reduced. If the item has already been paid, it obviously requires some sort of cooperation from the seller, and the extent of the discount can be a source of dispute and might require a neutral third party.
Fulfilment of contract: The buyer insists that the seller fulfils the contract. If the seller is unable to or refuses, the buyer can seek remedy on his own, either by having a defective item repaired, or by returning or making available for collection a wrong or beyond repair item, and purchasing a replacement item in comparable state to the original one. The expenses are then charged to the seller. The buyer is expected to minimise the expenses, though, so if a used item was being sold, buying a new one as a remedy will only be deemed acceptable in rare circumstances.
The seller on the other hand can expect the buyer to honour a valid sale.
I think you have a decent legal standing to have the transaction rolled back as invalid as the item shipped clearly doesn't match the pics and your payment details support your position that you were bidding for the item depicted, not aware of a change in text, and therefore entered the transaction under wrong assumptions. I'm a lot less sure about your standing to have the item viewed as faulty, giving you access to the additional two remedies, as the seller can argue that at the time of transaction he had described the correct item in text, and I'm not sure how both positions would be weighed against each other. That is why I think that the remedy that would apply to both cases, rolling back the transaction, is the best course of action for both sides involved.
Thanks
