NFXFSX, welcome to the BBForums.

What data plan with TMo did you subscribe?

Normally, it is fairly quick, under two hours. I really don't know about on weekends...

BUT, if you are certain they have it on your account (they do make mistakes, I have seen it on this forum all to often) , on your BB, go to Options > Advanced > HRT. Click Menu > Register Now. Pull the battery on your device for a minute (while powered ON) replace and reboot the device. You should get a registration email if activated.

Sometimes, the HRT register and battery pull reboot will install the Service Book required for activation.