Is there a way to turn off the 'preload' emails i keep getting?

This feature just seems like a way to make things better for thumbtack since we'd effectively be giving you an interest free loan by preloading. Preloading doesn't offer me any benefits. Having 1 charge on my credit card from thumbtack or having 10, it's all the same to me. Do these emails fall under 'tips for success' under email preferences?