Misleading vehicle sale

2 mouths ago i approached the dealership with the intend to trade in my current vehicle a 2018 Ford Ranger. I was approached and assisted by a gentleman called Thabiso whom i made it clear to him that i want to give back my Ford bakkie as the current installment im paying for it is too expensive and get a smaller car which is a brand new polo vivo. He the did a sale for me and i kept emphasizing to him that i dont want a ranger on my name anymore. Its been two months since i left my car at VW melrosearch with Thabiso but to my suprise the bank is still debiting me for my ford ranger and this has caused me a huge financial inconvenience because reason i bought the vivo was because i cant afford the ranger. Everytime i call him about this he tells me my car is still advertised by the dealership. I dont understand the process when the dealership trade in the car but now its been 2 months since my car is at vw melrosearch and i dont have in my possession. When will my car be paid off so that i can stop paying for it coz for the past 2 months i cant provide formy family, andimadeitclearthat i cannot afford to have2 cars on my name sincedayoneofbuying a vivo , isthisthe way Hatfield vw mislead customers into buyingby telling them to leave their cars at the dealership. I need someone in authorities to explain to me when will my car be paidby the dealership, the person who works there has my car and ifa customer tells you they cant afford the installment of bigger car car they currently own how do you then justpark his car atthe dealership and not settle it.i feel i was mislead to something i cannot afford which isto have 2 cars anc now what mustbe done because I said it from day one that i cannot afford 2 cars and now the salesperson have had mycar for 2 montns without settling it.what must i do as customer who cannot afford vehicle installment and was misled by a so called professional salesperson. In closing asi said from day one of entering Hartfield vw i cannot afford 2 vehicle installment. Please I need a answers