non-refund of excess amount from amc of aquaguard

Location/place: bangalore

Name of company/service: eureka forbes limited

we are aquaguard water-purifier customer for last 20+ yrs. Recently , responding to our service request, your expert from ‘PAWAN ENTERPRISES’,#378,YALLAMMA TEMPLE STREET,BANGALORE-37, appeared and did the servicing. We asked for an AMC for 1yr, and accordingly, as directed, provide your service-personnel a cheque(no.011473, dated 12.08.2013 drawn on ICICI Bank,of Rs.4555) and as demanded gave him Rs.425 in cash as service charge. Later on , we discovered in the contract receipt (no.10 22476340) that, the service charge of Rs 425, which he has already taken from us in cash , has also included in the total amount ( 4130 +425=4555) in the cheque.Discovering the fault we constantly keep on calling the person( mob.no.9611328633) as well as the Enterprise, pointing the mistake. WE were just provided with false assurance for last 10days that the differential amount will be returned to us , but with no result.

May I request to look into the issue with reqired importance and revert back at the earliest.

Thanks,