They are *****ing our money!!!

I lost my job in 2014. Being an Old Mutual client I was advised to secure my funds. My broker contacted MIBFA on my behalf to transfer the funds. It took a frustrating 7 months of e-mails and phone calls to get the money eventually transfered, only because they were dealing with an established organization. I had not received benefit statements since 2011 so I didn't believe that they payed all that was due to me. Upon investigation in 2015 it was discovered that MIBFA had miscalculated, there was 2 years of funds outstanding. I'm still waiting for the money to be paid. Every time I call they have different excuse. I fail to understand why I should be begging for money that technically belongs to me.