Jazmax Umhlanga wont return deposit

Rented a property through Jazmax for my Niece in Durban North through Jazmax Umhlanga. No copy of lease signed by Landlord received despite many requests. After a few months she was given notice to vacate as she had 'broken the rules of use of the common area'. She was storing some boxes for a friend in her (outdoors) laundry area. Again asked for a copy of said rules as it was never sent. The 'breach of rules' was rectified so requested the Notice to vacate' rescindment in writing. Again, nothing received, so she vacated at the end of the month. Have been trying to get deposit returned for 4 months. Jazmax sat the deposit is with the landlord but refuse to supply landlord details, phone calls never answered but always promise to return calls and never do. Avoid this company at all costs.