Unsatisfactory service

I took out a funeral cover with FNB in Aug and amongst the family members i covered is my daughter who was born in 2003 January. Her date of birth was captured as January 1976 same year as my life partner, which makes her older than me ( which obviously doesn't make sense that my own child is older than me). I tried twice to have that fixed and the date was fixed but the premium is still not correct as the premiums are calculated on age. All the other family members were captured as Miss even though some are male. It seems as if FNB is only concerned about sales target and nothing else. I want this to be corrected and the difference in the premium amount refunded ASAP. I was also promised a discount on a family cover but in stead the premium is higher and was also told i can not put my sister as my beneficiary, that it has to be my life partner. As far as i know a beneficiary can be anyone i damn wish to be. I pay the premium they cant tell me who to select as beneficiary