When changing a mobile phone, you need a verification code for each payment. Whether it is WeChat or Alipay or even Meituan and Didi Travel, what should I do?

Because WeChat detects that you are not using the original device, in order to prevent your funds from being cheated, you will be asked to enter the verification code. You can reset it in settings and add devices. If it still doesn't work, call customer service and ask them how to solve this problem.