Service not paid for

We run a laundry service which was requested by the management of Ramkietjie for their banqueting laundry. It was agreed upon that we pick up on Mondays and deliver on Wednesdays. During December the functions picked up and we were picking up and delivering on a more regular basis. In the beginning of December we were paid regularly by cash and then as we got to plus minus the middle of December we were told by the then management Nathan and Chantal that we will be paid by the owner via EFT who was having a holiday in Spain. This never happened and once the owner returned we were still not paid and till today there is still an outstanding amount of R17250.