Faulty quick release buckles!!!

[dbar5050]

I'm asking for advice as over the last few months I have bought several buckles from the same seller . They look perfect and I even tested them for my dog collars to check opening and closing capability. I have started receiving messages from customers and photos showing that the buckles are faulty! I have had to replace these collars and had to search for better quality buckles and feel that I  should be refunded for all I have paid for! I have explained to the seller about the situation but they said it's late! What can I do ?

[plpmr]

from what you say here - 

you purchase there in order to sell on, that and the fact that you are not a registered business seller can cause you problems, especially if you approach trading standards.

[tobiasd4]

Ebay provide 30 day MBG, so if within that time you can open item not as described case & return for full refund.

Paypal allow longer, but you still have to return items.

If UK business selelr, contact Trading standards.