Here is the latest user satisfaction survey where you can give constructive feedback about Creality products.
Dear Creality users,
Thanks for your support and encouragement.
In order to provide you with satisfactory products and services,
Please take 1-2 minutes to complete our User Satisfaction Survey for a chance to win surprise gifts, including the K2 Plus Combo! 
Click the link below to fill out the questionnaire.
There is a limit on the number of gifts. We are looking forward to your participation!
For any questions, feel free to consult our online customer service
Thank you, we are looking forward to your participation!