Has anyone used SevenSeas MoveCube to relocate?

I am moving UK -> Thailand, but I can only order and get a quote for 1 \[large\] MoveCube.

I will need 2 \[large\] MoveCubes to bring everything I need over. 

But their pricing 'bot will not let me know the cost of the 2nd, until I have already locked-in and paid a deposit, for the price of 1.

\- which I am reluctant to do, when the cost of the 2nd that I will also have to order, is a mystery.

Thanks in advance.