Thanks a lot @fig26uk2 both for the site and your game. I have played it a lot, and really loved it. Simple and enjoyable.
As for the site, I would not recomend to actually spend money. While itīs great to play for free sometimes the IA drops the ball and the image you get itīs not what you are talking about, or some weird glich happens (I got girls with two heads, or three arms, or things like that). While itīs not a big deal while playing for free, if you have actually spent money it can be... annoying.
Now, for those with credit problems, you can play for free a small amount of turns indefinetly. If you use private browsing you get an amount of credits. When you run out, you log out and then log in again as a new account and get some more credits (you have to start over). Changing browsers and closing all the windows of the browser may give you more credits, I donīt have a proper walkthroug, but the lowest you get is enough to play 7 turns and that means you just log out and donīt close any screens. The number of credits you get depends on the site finding out you have been playing with another account, if so, it adjust the number of credits (again, 7 turns the lowest if you start with a new account).
I hope I have been helpful