String literal. A string literal or anonymous string is a type of literal in programming for the representation of a string value within the source code of a computer program.
As usual, the devil is in the details. For instance, with some prepaid wireless plans, your minutes are only good for a limited time, usually 30 to 90 days. If you don't use them before they expire, they are simply subtracted from your account anyway.
The practice of placing holds on debit card accounts at gas pumps is nothing new. It happens because when you pay at the ump the exact total is not known. Holds generally expire within hours of buying gasoline. But consumers could end up unable to access their own money for longer periods of time.