When I ordered this for my cats, the price was advertised at $19.95 plus s&h and your second one was supposed to be free - just pay additional s&h. I was given no order # or total at the time of the order and was told that the breakdown would be in the package for my records. I ordered 2 sets and ended up being charged $86.70 for what should have been $55.80! AND there was no order slip in either of the boxes! Since they shipped 2 boards in one box and 2 boards in the second box - there should only have been one charge for s&h for each box. WATCH OUT FOR THIS COMPANY, THE PHONE NUMBER LISTED ON MY BANK STATEMENT WENT TO A TALK LINE!!! and I haven't been able to get anything resolved to date. Challenge any overcharges with your bank. Maybe they can get this company's attention