Hi Mercedes – thank you for your question! For everyone else, please do post any questions you have and we will do our best to answer them as soon as possible.
With regard to payment systems, you will all be fine on course using cash. There are very few places in mainland China that will take foreign (or even local) credit/debit cards as payment, but we have never run into any problems using cash in the areas we go to, and in fact, the instructor team uses cash for almost all of our transactions on course. As long as you have notified your bank in advance that you will be traveling in China, you should have no problem withdrawing RMB cash from ATMs within China using a foreign debit card. There will also be opportunities to exchange cash (e.g. USD to RMB) in cities.
Hope this answers your question!
Zack, Long Yun, and Madeleine