Poor phone signal in Centre Point, Milnerton

Centre Point Mall, Milnerton in Cape Town, no Vodacom reception, very little Cell C, full reception for MTN whislt in the mall? Went to Nedbank in the mall to update my internet banking this morning - I had to sit outside the bank on a bench in front of Ackermans with the manager on her laptop trying to assist me. The reason being part of the process involved me receiving various confirmation sms`s which was used in the upgrade process. We could only obtain a slight Vodacom signal in front Ackermans so had to sit there. Cant believe this!! In this day and age a service provider (or the Centre Management, not sure who) cannot ensure a decent phone signal in a large mall in Cape Town? C`mon guys, really!!