Cannot use new email account as it needs to be verified and I don’t have a mobile phone!

I just set up a new email account and the first email I tried to send wasn't allowed because I had to verify the account due to suspicious activity using a mobile phone. As the account was only set up 5 minutes previously there was no suspicious activity and as I'm currently travelling I don't have a mobile phone! I tried to verify it using the other option of sending the code to a different email address, but when I try and send an email again the same thing happens. I have no possibility of receiving a code by SMS, how can I use the account?!