No customer service

2014 my father invested money at Liberty Life through FNB for five years amount was R100 000. Through that years there are withdrawals and transfer that he was not aware of them. There is transfer of R50 000 to account that he don't know, that happened on 2014. Matured year of investment was October 2019. The amount was still R100 000, no interest, we tried to find out but no one helped us, they refuse to printed us statement.