SMS verification worked once, then never again

[shze]

A few days ago I was able to successfully change my password via the reset password link. I received a SMS verification code and boom, Bob's your uncle.

Today I tried to change my password again and now I get absolutely no SMS verification code. Is there some sort of silent wait period before I can change my password again or is there a way I can force a new SMS verification code?

Any advice would be appreciated.