Hi, not really a tech question but more about logistics. I am putting together a site for a client at the moment. At first they didn't want the ecommerce addon, but they have changed their mind and would like to have it now. What is the best way to have them pay for it directly and me to install it, even though I don't have the site on their server yet? Is there like a free developer version or something? I haven't bought any C5 addons yet so I'm just not sure how this works. Had I known up front that it was going to be part of the project I would have billed them for it and paid for it myself.

I suppose I can still get them to pay me and I pay you for it, but there is going to be a time delay for that, which means I can't get the rest of the site finished. If it's a case where I do have to purchase it first, I'll work it out somehow, but it would be nice if there was some kind of development license or something until it's on it's proper domain.