Airtel — prepaid sim porting

Address:

560024

On 9/04/2018 i applied for porting number[protected] from reliance to airtel. This was done at airtel store near to sindhi college hebbal bangalore - coffee board layout. No bill was given even after request and insistence and she said it is sim charges and no bill will be given

The lady collected rs 560/ and the porting got done from 15/04/2018.

Today i am trying to make calls and no currency in my account. What happened to the rs 560/.
This is absolute deceiving from airtel. Need justice