I've gotten more than 100 messages from a shortcode - 6245 (MAIL) since the beginning of May. I've contacted customer service on 3-4 different occasions, and have tried everything they suggested. I've tried the "block messages from email" (doesn't work), I've added the higher tier/$4 monthly charge to keep from getting spam messages (doesn't work), and I've tried sending "STOP", "UNSUBSCRIBE", etc. (doesn't work), and I've sent them to 7726 (SPAM) (doesn't work).
I've told the customer service contacts that on my usage, the messages are all coming via 6245, so I can't simply block the number because blocking requires a 10 digit number.
These messages are not only coming from spam users, but, it looks like it has several users in a mail list, so I keep getting their "stop", "remove", "take me off this list", and several other responses that I can't put here because of their NSFW nature.
What I need is someone to tell me how to block shortcodes, specifically 6245 so I can stop getting this spam.