Please tell me what is unbilled transaction in credit card?
The total amount of transaction that is made after your previous billing cycle is unbilled amount in credit card. Since these charges have not yet appeared in your current credit card bill, hence they are labelled as unbilled.
Generally, your credit card cycle spans over 30 days. The bank generates a statement for these 30 days. Any transaction post that is unbilled till the next statement.
For example, if your billing date is the 18th of the month and you make a purchase on the 19th, this transaction will be classified as an unbilled amount until the next billing statement is produced.