Bad bad bad

i bought a brand new Renault Kiger end April. 24.The 2 June 24 .the car didn't start.i phone roadside assistance the come out happy with the service i was sorted out quickly..they told me that battery midget be faulty so i need to go back to my dealer,cause it was a Sunday so i thought it was close...The Monday same story car didn't wanted to start....i took it to Renault Steenberg..they eventual found out the automated didn't charge the battery...they send me off telling they have order the part it will take 3-5 working days .,but they need to let my know it car will out out again...i told the Lady how can they send me out knowing the car will cut again..i need my wheel with the business im in i cant afford to be without a car.i can leave the car they they car give me a loan car while they sorting me out..i was told they cant cause its just between 3-5 working days that's not long enough but if the waiting period was 21days then they could...I ask the lady so you telling i bought a brand new car which i only had one month and this giving me problems but you still sending me in the road with a faulty car and you guarantee me it with cut out again...she just pulled up her shoulder..the manager that was feeding her what to say was hiding around the counter ...i left and then the Wednesday it happened again....i phone and give them abut of my mind .came to fetch the car around 1pm....its the Thursday around 1pm and i haven't heard anything from them...