POSB and DBS are national banks. They can use each other's ATM machines to withdraw money or perform other operations. The remaining OCBC and UOB can use each other's ATM machines to withdraw money or perform other operations. So if yours is UOB, you can only withdraw money from OCBC.

Extended information

The application and loss reporting procedures are as follows:

The procedures for applying for a credit card and a debit card are different. When applying for a credit card, you need to bring your valid documents (ID card or copy of ID card), proof of residence, proof of unit income or proof of personal assets and other materials to the bank counter to go through the relevant procedures. You need to fill in the application form, and the information must be true. After filling out the application form, it must be filed with the head office of the account opening bank. After the head office of the account opening bank reviews the application materials, it will take approximately 20 working days before the card can be issued to the customer. Applying for a debit card is relatively simple. You only need to bring your valid documents, mainly your ID card, and fill out the application form at the account opening bank. The card will be issued to the applicant at that time.

The loss reporting procedures of major banks are not exactly the same. If you lose your money, you can first use the phone or online banking to temporarily report the loss, and then bring your ID card and other supporting documents to the bank counter to report the loss.

Reference: Baidu Encyclopedia-Bank Card