Explicitly ask the representative to remove the "Shortcode Blacklist" or any "Message Blocking" services on your line.
Go to the Account tab > Messages and data > Spam protection to manage allowed codes. how to unblock shortcode texting t mobile
Sometimes the block is on your physical device rather than the network. Explicitly ask the representative to remove the "Shortcode
Many T-Mobile users (especially on "Simple Choice" or prepaid plans) have an account-level setting called a enabled by default. You usually can’t see or change this yourself online. how to unblock shortcode texting t mobile