The easiest way is to call a specialist. I had a similar situation with a friend's car. We were about to leave, but he forgot his sunscreen at home and asked us to wait for him in the car. While he was running after him, I decided to smoke. I got out of the car, closed the door. I heard a sound and realized with horror that he had self-closing doors on the car. After a few minutes of swearing, he still agreed to choose a locksmith, and I called the specialists from https://www.locksmithsingapore.sg/. The guys arrived quickly and did the work efficiently. But my friend hasn't left me in the car since then.