My cousin and I send text messages regularly. Last week we went to Mexico together and texted there as well. Now that we are both home, when I try to text her, the messages fail and I receive the error "No valid recipients for this MM." Her phone number is also displaying as 001XXXXXXXXXX (Xs are her 10 digit number), which I find odd, but it shouldn't matter. (I have changed her number in my Contacts back to XXXXXXXXXX and it still gets changed to 001. And I have sent texts directly to XXXXXXXXXX and it still changes to 001.) I have removed my global plan and have changed my Verizon "Network Technology" settings back from Global to LTE/CDMA. I get the same error when I set it to Global. Is this a problem on her end or mine? FWIW, she I received a text that she sent me yesterday, but I can't reply. Thank you!