I am an eBay seller and reside in NJ, U.S.A. eBay recently made new policies changes called the defect policy. Where eBay gives defects(strikes against account) to sellers for certain situations in a transaction. Sellers can be penalized for receiving a certain amount of defects. eBay announced this policy in March 2014 but is enforcing it retroactively from August 1, 2013. I have now received several defects for transactions that occurred prior to the announcement. When they occurred they were not defects per eBay policy at that time. I will lose my top rated seller status due to this retroactive enforcement which will cost me to lose %20 discount in fees paid to eBay. Is this a breach of contract? If not is their any other law, act, doctrine, etc. governing this issue?