This is what I could find in eBay's help pages for a 402 error.
If you receive a 402 error, you can try these steps:
Check your account balance and daily limit
Ensure your payment details are correct and up to date
Try again later
If you're having trouble listing an item on eBay, you may have reached your monthly allowance, your account may be restricted, or the item you're trying to list may be prohibited. You can contact eBay Customer Support to find out the exact reason why your listing was blocked.
If the above does not help you'll need to contact eBay Customer Services who have full access to your account and can explain this error message for you. If you do receive an answer that makes sense please can you return to us and tell us, it may help us, to help others facing this error. Thank you.
The easiest and quickest way to contact Customer Services is through this link, for a Call Back .