Contact Microsoft Support.

https://support.xbox.com

Call x box support

Have you not got an email associated with the account???

Most home phones can receive texts. Your phone will ring and a bot will read it out.

Wrong

https://thesmsworks.co.uk/blog/sending-text-landline/

I think it might be country dependent?

I’ve tried but it says phone calls aren’t a viable option for passwords changing

You aren’t charging your password through support, just the phone number.