You can simply select any valid VPA and choose to pay later in order to create a mandate.
Related Question
Does the UPI ID necessarily have to end with @freecharge?
How will I know whether the unique ID (UPI ID) provided by the receiver is corre...
Who can use UPI on Freecharge?
Are there any charges to use UPI on Freecharge?
What is Freecharge UPI?
What is a UPI ID?
What if someone has already created a UPI ID using my name?
What can you do using Freecharge UPI?
Is UPI available on Freecharge app on iOS, Windows and Blackberry smartphones?
What can be a UPI ID?
How can I create a mandate?
You can simply select any valid VPA and choose to pay later in order to create a mandate.