CBD Residency refusing to pay back the deposit

My daughter was a resident at CBD residency and we had paid a deposit of R2900 when she moved in... She moved out on the 26th of November and we were told the refund would be paid into my account in less than 21 days, which never happened... We phoned in January and was sent from pillar to post until I decided to visit their offices personaaly in February.. I was then told to fill in the same forms I had filled in November and submitted the same documents... In March I was still waiting for my refund. I then sent out e-mails and was required to submit the same documents, which I did but was very annoyed... Today a refund of R1400 was payed into my account, instead of R2900. What level of dishonesty is that?