I bought a mobile scooter on "Rent-to-own" deal in June 2025

I bought a mobile scooter on "Rent-to-own" deal in June 2025. Paid R7,382.50 deposit and first installment PLUS R450.00 delivery cost. First complaint on "bleeping sound" reported on 21 August 2025, a mere 2 months later. They suggest Q20 which did not help. Collected my scooter and left me with one to use. After it was brought back, the same sound occurred. Came to fetch it again during August 2025. Up to date I'm still using the scooter they left here. After numerous WhatsAap messages, I'm still without my OWN SCOOTER. Please help.