If you rent a person's room in Singapore, it costs about 400-500 yuan, and a pack of cigarettes costs 1 1.5 Singapore dollars. You can save a lot if you eat, mainly depending on how you spend it. Spending money is like running water, and 18000 doesn't help much.

1800 is a fairly high salary, and other subsidies or overtime are considerable. The landlord can consider it, but be careful not to be fooled. Many people in China have been cheated, and their promises can't be fulfilled after the money is paid!

20,000 RMB is about 4,000 Singapore dollars, which is a bit expensive, about 2,000 Singapore dollars.

The main thing is to read the contract clearly before paying the money. This contract is usually written in English. It's best to let him have one more Chinese version and read it carefully before signing the contract.

There must be a contract, not a verbal promise.