Bad Communication and Unfair Treatment

I have a provident fund with momentum. The company i worked for didn't make payment into the fund for a couple of months. Momentum did not respond to me to let me know that there is no money being paid and that they are going to liquidate the company. Only when i resigned from the company and wanted to claim my money is when they told me about this. because of lack of communication from Momentum I am the one suffering and it so unfair. I believe the money that is in the fund i am untitled to.