on 11-14-2020 02:58 AM
EBay gave you a window for delivery. If the last estimated date in that window has passed, go to the Resolution Centre at the bottom of this page and open a Not Received Dispute.
If the date has not passed you will be unable to open the Dispute.
Like the other posters, I doubt you have been corresponding with eBay. Your seller has been putting you off.
Do you have a tracking number? If so, where does the tracking show that the battery is now?
If the delivery window has closed you have only 30 days for the Dispute to be opened.
If the seller cannot prove delivery, you will be refunded.
There is no need for any further communication with the seller.
If the window closed more than 30 days ago, you are covered for 180 days from payment by Paypal.
The PP Resolution Centre is at the top of your PP account page under Tools.
If the seller cannot prove delivery (not shipping, delivery) you will be refunded.
You are also covered by the credit card you back your PP account with, but they are the last appeal.
Start with eBay, if that is too late, go to PP.
I agree that the problem may be that importing lithium batteries is very difficult.
However, if the seller does not give you a working tracking number, it is also possible that nothing was ever sent, even that the seller has never had any batteries.