If you wish, we can also block or blacklist contacts stored on the Huawei smartphone. Once blocked, we will no longer receive any messages or phone calls from that contact.

Android 10 | EMUI 10.0
Block contact -  Open the  Contacts app
Block contact -  Choose a  contact
Block contact -  Tap on  More
Block contact -  Tap on  Block contact
  1. Open the Contacts app
  2. Choose a contact
  3. Tap on More
  4. Tap on Block contact

Huawei Instructions