2 weeks later I am still waiting for my refund! Managers are ALWAYS "going into a meeting and cant talk"

I cancelled my building insurance, and I was supposed to get my refund of premiums paid 2 weeks, ago, I was also supposed to get a call back by the agent I was dealing with - Precious/Patience on Monday 16 Nov, and I never got the call, never got an email, nothing, to this day I am still waiting. I spoke to an agent for an unrelated matter, that person put through an escalation on my refund. Still no call back. I spoke again to a third agent who also promised he would call back last week Tuesday after his exams whether the first agent called or didn't. He advised my matter had be sent again to a manager and also, said that the first agent will be reprimanded for not calling back - oh and they are both senior advisors. 2 weeks later, nothing. No refund, no call nothing. And when I asked to speak to the managers, they are ALWAYS "going into a meeting and cant talk to me". Funny thing, after all this, I get yet another call from another agent who is trying to sell me on home insurance - firstly she tells me she saw that I sold my house???? The information there is so flawed and confused, and I asked the agent why I would take out further insurance with a company who couldn't be bothered to call me back, the managers waive me off with the same excuse every single time and have still not paid my money back. Of all the 4+ people I've spoken to, noone has assisted and I am still waiting for my money!