I am not trying to say you do not care for her. I was just speaking from what I have read in your post.
There are other places that take other forms of payment besides Credit Card. There is lot more effort you could be putting into this to ensure you get a thermostat asap because it really is imortant.. If you need direction, I will help you.
http://www.strictlypetsupplies.com/_...0-R-Thermostat
http://www.herpsupplies.com/product.cfm?id=SZMRT500R
http://www.reptilesupply.com/product.php?products_id=75
Just a few I found.. There's loads more.
If all else fails, post an ad right here on BP.net. That is where I got my 500r from. In the meantime, get a dimmer.
Good luck!