no help while on maternity leave

I took a loan out to pay for doctors bills before I went on maternity leave when I took it out I ask them if they can help me while im on maternity leave they said yes. A month before I went on maternity leave I went into the bank to sort things out got a letter from my work and a copy of my ID which they asked for did that in Ramisig. 2 months later after asking for someone to help me I got told no because the account is not older that 6 months they cant help me. I have been with FNB for a very very long time when it was a bob account. So when I got paid they took everything I had in my account leaving me with nothing.