I can't receive the code

[designerxpt]

Hello everyone I want to change my account gmail for security purpose. I can't do it when I change my gmail the option to receive code on my mobile number is not clickable what could be the reason?

[developerashraf]

You have to try again later. 
Maybe server issue.
It's not a big issue.
Don't worry about it. 
please try it again after 5/6 hours.

[dev_yeasin654]

You try agin later