Unhappy customer

I have sent 4 emails to Liberty Life regarding an unclaimed amount from a hospital, ( with regard to my Lifestyle Plus Policy, which I have had since 2003) and have had no reply from them, besides a computer generated email that says they are in receipt of my mail and will contact me. Well, no contact at all for the past week! Then I phoned 3 times, and hung on the line for half an hour each time, but no luck! I then sent a message where they say they'll call you back, and once again they acknowledged my message by email, saying that they will call me. That was early in the morning, and it is now 330pm, and no call back! This is totally unacceptable from a reputable Insurance company!!