Two solutions:
1. Use Amex card. You need to have access to your email or cell to get verification code.
2. Sign up Wechat and link your credit card (AMEX, Visa, Mastercard) to Wechat Pay, and then use Wechat to make a payment.
I am not sure Wechat pay with foreign credit card works fine on didi, but I have successfully made payments on other apps, so it should works.