regarding Paramount+

Do you have an log in and password? If so download the app and sign in.

I have my login and password for t-mobile but have not received anything for Paramount+ after I agreed to the promo.

Did you sign up through Tmobile or  Paramount?.

https://www.t-mobile.com/offers/paramount-plus-deal

I received an email from T-Mobile with my Paramount + credentials. I'd give Tech Support a call and find out how to get them, or have them resend them to you. Once you have that, you're good to go.

I signed up through my Mytmobile account in line add ons.