hotspot 2FA authentication

I was trying to set up tmobile tuesday with the phone number my hotspot is using. I see there is 2FA authentication where it texts a code to that same phone number but I’m not in possession of my hotspot as it’s being used to monitor security cameras remotely. The customer service at tmobile told me I can go over there and connect to the hotspot with my phone and should be able to see a “messages” area in mobile.hotspot.com and it will allow me to retrieve the sms text I was sent. Is there an easier way to do this? I see on the tmobile app there is a usage history area where it tells me the data I’ve used and there is a messages area but its blank.