I cannot find anywhere to complain about a buyer that keeps pressing buy it now or bidding on an ite

[plpmr]

adding to tressygirl good advice -

Your other problem is that if the buyer reports you it will damage your account.

Leaving a false positive announcing the buyer did not pay is serious feedback abuse.

The correct procedure is to hit this type of buyer with unpaid strikes - that protects you and other sellers.

[tressygirl]

You don't complain you block them from bidding and  buying from you.

https://offer.ebay.co.uk/ws/eBayISAPI.dll?BuyerBlockPreferences