Bad service and empty promises ( Jacket design)

i did a deposit on the 14/05/2025 of about R300 for the design for the jacket. They told me i will get it the design within 3-7 days. Now they are keep on lying to me that the designer is sick. Yesterday I spoke to them and the manager promised me that i will receive the design before end of yesterday. Now i am tired of their lies and empty promises. I told them they better send the money back.