Sending Code Failed when im adding phone number

Hi there, im having this issue when im trying to add my phone number to my account, all my friend have the same issue, is everyone have the same?

I recommend contacting support for help with issues of that kind. You can find support and instructions on how to contact them here: https://support.gaijin.net/hc/en-us/articles/360000262858-How-to-submit-a-support-request