sending text to my cell phone using @tmomail.net no longer working?

I am also having this issue and opened two tickets, with the latest being escalated.

Thank you for being a valued T-Mobile customer! Trouble Ticket # 75019739 has been opened on your account. Please allow 3 business days for teams to review. Resolution can take longer depending on the issue. 

I have tmobile business lines for all my field service techs and they depend on this messaging to respond and repair to equipment in the field, now they havent gotten any notifications and equipment is down without us knowing.

major issue!