I ordered a custom table cover 44" x 44" because their price was the best and they had the largest selection. When it arrived it was too large. I double checked the size of my table and found I had made a mistake, my table was only 42' X 42'. I called sevennotrump.com and explained my problem. I was told to return the cover and they would adjust the size.
I received the new cover in a week and it fit perfectly this time and they only charged $4.95 for adjusting and re shipping the cover.
I had made the mistake in the size so I was pleasantly surprised that there was no extra charge.