Sarcastic / Refund Deposit

Tenants moved out of apartment 31/03/2016 and was promised that the refund would be paid back week of 4 - 8 April 2016. Today (08/04/2016) tenants were informed that deposit refund would only be paid next week as Rawson (Morelettapark) is waiting for the cleaners receipt/invoice for services rendered. I requested that the deposit be refunded 08/04/2016 as negotiated when premises was vacated and found in good order. When Raswon requested the deposit form the tenants they did not wait for the funds and as a client we expect the same from Raswon minus the sarcastic attitude from Lizelle at Raswon Morelettapark