I've been noticing this for a while, but never this much. Every so often when I go to buy a model (that I have made and already know the price of) it will give me a price that is way too high. Usually it raises the price by about $70, but today I went to have an item printed (a $10 ring) and it raised the price by almost $1000 dollars.
Can you provide a little more information on what you are doing? Did you reupload model or is it the same model located in My Designs which you ordered before?
Can you give some references like model name so I can take a look?
Actually I figured out the problem. For some reason the size listed is about 100 times the actual model size...perhaps I made a settings error before exporting to stl. Anyway I'm going to see how to fix that and reupload