Half the RAM on logic board - NO RESPONSE!

<p>Over a month ago I ordered a MacBook Air 11-inch Logic Board 1.7 GHz i5 8GB RAM.<br />Instead SA Spares sent an older 4GB RAM Logic Board and have refused to get me a replacement. They do not return calls or emails.</p> <p>You will notice the other bad reviews. Unless you are prepared to deal with ********** who sell older parts with half the RAM, do not buy from SA Spares!</p>