Hi there @sgtheones, 

Welcome to the Community! Happy to help here! 

It should be noted that when you have a  Branded IDs as the sending number, that two way messaging isn’t possible for this kind of number. You can send SMS communication to your customers in the form of a flow or campaign message, however, gathering SMS subscriptions via a Brander ID is very limited. You can only collect consent via a desktop experience (i.e., on a subscribe page), as mobile would require tap to text, for a Branded ID, or mobile if you add someone to a list via single opt-in. If you choose or have done the latter option, I would consider checking out our documentation on SMS compliance as consent differs on location:

• Understanding explicit vs. implicit consent 
• Basics: SMS compliance
• How to collect GDPR-compliant consent
   

As tap to texts and SMS subscribe words require a response from your brand’s number to opt in, it would not be supported as a Branded ID, which is why your customers are receiving the only SMS number that can support this, your Canada/US number. If you want to use an easier SMS subscription experience, you can request a UK long code or short code which allows two way messaging.

Thanks for participating in the Community!

-Taylor 

Hi, Taylor

Thank you so much for your reply. It was helped me understand SMS marketing so much more deeply plus I have now been able to work around my original problem.

For future people that come across this problem or similar one I ended up still using my Brands ID as sending number as it was important for my customers to recognise that my brand was sending them the message. But because with using Brands ID as sending number I can not do two way messaging, so I reverted to using an embedded SMS sign up form on my site to collect subscribers as it is single-opt in. Then set up a SMS flow for new SMS sign ups to receive text to let them know they subscribed and a discount code (optional of course). 

Thanks,

Aaron