I can't gat SMS verification on my mobile phone

I need to change my cell phone number,or remove my cell phone number.I’ve been going around in circles with customer service support.He keeps asking for my verification code.I can’t even get a verification code.Where can i find the verification code for you.

Same problem here, does not send a code to my phone

Did you guys ever find a solution to this? I am having this issue and want to cry.