Disappointed with Sanlams work and i feel ****med after paying my parents insurance policy and only to find out only 1 parent is covered and not the other yet both parents signed to be insured and ive got the paper work

A few years ago my parents asked me to take out a life insurance policy for them and i said okay so i took a policy for both my parents and they signed the paper work and my dad did his bloods because thats how the process works and my mum already told the guy she was diabetic and so they didnt do any bloods for her and ive been paying for the insurance for a good couple of years now and i always received emails for my dad and never for my mum and i didnt think much of it at the time so last week i emailed sanlam to find out about my mums policy and why dont i receive any emails for her and they sent me an email saying that her plan is not inforce and im shocked because to my knowledge ive been paying R941 for both my parents and ive been paying for so many years i am just so disappointed i feel cheated at this point i cant believe that both parents have papers to say they covered with a policy number and only 1 parent is covered i dont advise anyone to take any life insurance policies with Sanlam because it feels like ive been ****med right now