We have a subscription with Supersonic, and we use a potrable router

We have a subscription with Supersonic, and we use a potrable router. Once a year, we come for holiday to a destination we come to every year, no problems with connection or the router. This year, they blocked our router on one location, so we cant use our router while on holiday. They say they allow 3 locations, but we are here for 3 days already with NO SIGNAL AND WE CANT USE OUR ROUTER AT ALL. Every time I phone and report it, it is a different story... And still our wifi is locked on one location. We pay R1000 a month, and for what??????? Supersonic is pathetic!