The Money Back Guarantee only is in effect for 30 days from delivery.
It doesn't matter what the problem was.
There is a 30 day deadline.
Which you missed.
Take a deep breath.
Now if you used Paypal as a payment processor, their Resolution Centre is on your PP account page under Activities.
Your reason for the Dispute is "not as described" whether that NAD is that it has less power than advertised or whether it is green instead of red or whether you ordered a thumb drive and got a pair of mittens.
Not As Described.
Unfortunately, by waiting past the MBG deadline of 30 days, you will be asked by Paypal to return the item and pay for international tracked shipping.
Which is why it is a good idea to read the directions before you start.
When the tracking shows delivery PP will refund your original payment, but not* the return postage.
If you used a credit card directly, you can apply to the charge back program of the card.
Card policies differ, but the reason is still "not as described".
If you paid with a PP balance, a debit card, a gift card, or a bank balance, there is no way to get a refund.
Never use those for online shopping.
You can leave feedback for 60 days unless you lose an eBay dispute. But apparently you could not open a Dispute, because you had passed the 30 day deadline, so you can use feedback.
The most effective FB is calm, factual and short.
"Advertised 2gb power Actually had less than one." for example.
*It's a tradeoff. 30 days vs 180 days BUT return shipping paid vs return shipping at buyer's cost.
