Airtel — convert to prepaid

Address:	560098
Website:	airtel.in

I would like to convert from airtel postpaid to airtel prepaid. I initially contacted your cutomer service who asked me to visit nearby store for conversion. So i stepped into 1. Beml last bus stop, channasandra store on 23/04/2018, your staff there straight forward informed that all their ids are blocked and will not be able to take the request. Next i stepped into 2. Kumarswamy layout police station road store on 24/04/2018, staff their was not concerned about the query and said concerned person is not available and will need to come back another dat. Next i stepped into chikkalasandra, bangalore intl. School store on 25/04/2018, your staff says there are no sim stocks and have to wait for 2-3days. Is this the way each and every store provides customer service? Is it so difficult to convert within same operator.