3 Month Free Trial

I’ve been trying to apply for the free trial for about a week now and every time I go into the T-Mobile app it has nothing in the home page I have uninstalled the app multiple times I have made multiple accounts and I still have no pop up saying “ Try T-Mobile” I am not a customer but I was hoping to see if there service was any good because I am looking for a new service my phone is unlocked and is compatible with e-sim may someone please help me out with this situation I don’t know if I’m the only one with this problem or not I have searched on google for a solution but have found non.