Coverage is poor at my school.

I've been trying to request coverage on the Mark the Spot app, but I've gotten no responses. It's really good that my school allows me to have the privilege to use our phones, but data and voice is almost unusable (mostly data because the speeds are slow). T-Mobile apparently has much better speeds and signal, since there is a tower literally right at our school. I go to Marietta High School, and in most places in the building I get No Service; even standing by a window. I feel really blessed about having this privilege, but I can't stay connected. I know -- school is school -- but seriously!