RCS Support for the messaging service...

I'm paying for a messaging service that doesn't support what I need for messaging.  I'm trying to use my Number Barn number for messaging, particularly for 2FA authentication from various services.  In fact, I want to move a few different numbers here for this purpose.  However, in my initial trial with my first number -- my home landline that I never use except for loyalty programs at stores POS and Ticket Master -- things are not working.  In moving this number to PC Optimium (Canadian retail loyalty program), I cannot receive their texts.  I've had support change to the short number support carrier, but I still do not receive their texts.  They use RCS.  I have other programs that are also having issues.  Ticket Master is not able to send texts either.  If I'm going to pay nearly $10/month for messaging service, I need RCS support -- otherwise, I just go back to parking the number until I port it to a very low cost cellular pre-paid program so I can received the appropriate texts.  I would much rather have numberbarn messaging so I can manage all the number's messages within a  single phone barn app instead of having to deal with individual phones, but without RCS and short number support, I'm limited what I can use each number for, and it's just not worth it.  Please add RCS support to make the service actually useful across all texting use cases.