Closed Data Usage Control, which affordable router to buy

[Universe318]

Mga sir baka may alam po kayong solution, I'm on a postpaid plan, balak po sana namin ng pinsan ko maghati sa internet, may way po ba para ma allocate-an ko sya ng certain gb using wifi repeater/extender or router.

I have here a tp-link wr941nd v5.1 which is not supported by open wrt or dd-wrt

he is more likely 40 meters away sa bahay namin.

what to do