You'll have better luck for an admin response by posting in the Petition forum:
https://www.project1999.com/forums/f...splay.php?f=25
However, my understanding is they don't allow for SMS # changes to prevent account sales/transfers. Either you remember your password, or remember what number you used for verification and call them and hope whoever now owns the number will relay the verification code to you.
Good luck! Remember to not bump your Petition post because they work on them based on their age so every time you bump the post you increase the amount of time before someone will look at it. Be patient.
-Mcoy