Not sure..in your terms of service of auction description, I recommend putting statements about no foreign bidders, no bidders with less than 98% positive feedback, no bidders with fewer than 10 ebay purchases and cancel any bids that don't meet those criteria...maybe language like this, specifically the items in bold) (this is what my sister the power seller uses for her auctions, some may not apply):
"Due to ease of operation and so many non-paying bidders, the ONLY form of payment we accept is Paypal – please do not ask for exceptions.; we manage everything electronically – I use Click n Ship. YOU NEED TO MAKE SURE YOU HAVE YOUR ADDRESS CORRECTLY LISTED IN PAYPAL – NOT MY RESPONSIBILITY IF YOU DO NOT – THAT GENERATES YOUR MAILING LABEL. Thanks.
Payment should be received within 3 days of the auction closing or the item will be re-listed.
We only ACCEPT BIDS FROM US BIDDERS AND only ship to US, Puerto Rico – it is because of ease of operation – we have full-time jobs that require 100% travel and do not have time to deal with international shipping and customs– no exceptions.
We ship USPS priority mail unless otherwise specified in the body of the listing – please do not bid if you do not agree with our shipping method; due to my job, I can only ship on WEEKENDS.
We will not accept bids from users with zero (0) feedback (ANY AND ALL BIDS FROM ZERO FEEDBACK BIDDERS WILL BE CANCELLED – BURNED TOO MANY TIMES), feedback less than an overall positive (+) 5 feedback rating or at least 98% overall positive rating. Please do not bid if you do not intend to pay. We do not accept bids from users with 5 or more negative (-) feedback ratings. We will cancel bid from bidders who do not meet this criteria. We reserve the right to block bidders who are argumentative or unprofessional.
Insurance is required for items selling for $50.00 or more.* Items selling for under $50.00 should be insured, but that is optional for the buyer.
We will not be responsible for items damaged or lost during shipment that are not insured."