Microwave rejects

I am extremely inconvenienced and frustrated with Hirsch's Meadowdale branch, as I have now returned 3 microwaves that I have purchased from them (All three being defective). It seems to me that Hirsch's sells reject products because the first microwave unit was damaged (LG) , the second unit (Samsung because they did not have stick of the LG) was off and not sitting flat on the counter. I had to make another trip to the store then they had then ordered another unit from Hirsch's Carnival City which they did not check before sending it out the delivery and the same issue (imbalance) was on that microwave unit.