Do you want to ask the question, "Is it trustworthy when Postal Bank called to say that the credit card limit has been increased?" This scenario may not be believable.
If you receive such a call and you really can’t tell whether it is a genuine or fake customer service call, you can hang up the phone and verify it. You can also contact the bank customer service yourself or apply for a credit card limit increase through the bank’s official website online banking. Do not directly follow the other party’s call. provide relevant information upon request.