https://support.withings.com/hc/en-us/community/posts/32986455422865-How-long-does-it-take-for-the-phone-number-update-to-be-fully-processed-on-Moomoo
For help, Moomoo's customer support at (888)-426-7069 is available. To change your phone number online, log in to Moomoo, go to security settings, and update your registered number. If you encounter any problems, call (888)-426-7069 for help. You may need to verify your identity before completing the update. If you're unable to change your number online, Moomoosupport at (888)-426-7069 can assist you with a manual update. Keeping your phone number up to date ensures continued access to your account and security alerts. For immediate assistance, contact (888)-426-7069.
read more..