How report dead spot / dead zone to T-mobile

Hey TMO if you are monitoring this, myself and many other parents of the kids kids that qualified to get into the school @ 305 MAST Way, Highlands, NJ 07732 are going to have to switch to Verizon. Although your coverage map shows '5G extended', it's a complete dead zone making it impossible to notify children parents are the to collect them after school. NOTE NOA, and NJ coast gaurd are also right here as it is at the end of Gateway National Recreation Area (Federal Park) welcoming 100000s visitors a year.

I have been a customer for nearly 20 years, we have 7 devices. Quite happy but not being able to contact the kids not only annoys the teachers waiting for us to collect them, its dangerous also!