Wasted Funeral Policy Premiums

I opened a funeral cover/policy for my daughter and granddaughter in 2013. I have been paying my monthly premiums without fail ever since. I then recently went to a nearby branch to find out about other options to choose for my recently born twin grandchildren. Whilst on it, I asked to check on my daughter's policy and to my surprise was shocked to learn that the policy I opened only covers my granddaughter and not my daughter. I have been paying R53 since ever since 2013 plus whatever annual increases that have been implemented over the years. Upon finding this out, I asked about options to explore with regards to getting a refund or having her added on the cover and was advised that I would be getting a refund. The consultant who helped me asked me to draft a letter which was to be escalated to the relevant department and I would then receive feedback within 7 days. I held on to that and waited patiently for 2 weeks without getting any feedback from Standard Bank. I then went back to the branch to enquire and was then told that there's no refund and I will unfortunately forfeit all the monies I've paid for the premium. I cannot accept this and I demand to be refunded for the premiums I have been paying for the past 10 years. I cannot have all that money going to waste. May this please be escalated to someone who will be able to assist me to get what is fair and due to me.