Fixed LTE Sim card activation delay.

I have received terrible service from RSAWEB. We purchased a fixed lte router from RSAWEB. The router and sim was received on Thursday the 9th of January. Since then we've called the technical line everyday to get the sim activated. We're transferred to the projects team who then advise they will speak to the coordinator and return our call but not a single time has our call been returned. Initially we were told it takes 72 hours to activate but that has since come and gone. We've asked to be put through to the manager of the projects team as this is affecting our work but apparently this isn't possible and the manager must call us back. of course the call back hasn't happened. I might understand that a technical issue is preventing the sim being activated, but I struggle to understand how know one from the rsa web projects team has returned a single call with feedback.