Is this regarding the item you bought in February?
As you mention in your feedback, the Ebay Money Back Guarantee only covers you for 30 days,
If you bought from a UK business seller, you could ask Citizens Advice for help on how to get the seller to accept the item back for repair/replacement/refund, or you can try your payment provider to see if they can help as you have bought an item which is not fit for purpose having failed so quickly.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
