Indraprastha Gas Limited [IGL] — refund of excess amount paid

Hi,
By mistake i have made two payment for the same bill for rs2696/- on 18.03.2018 and 20.03.2018 and for which i have raised a request to refund the excess amount paid as i have to make dome other important payments too. I contacted your customer care and he told me send email to customercare. [protected]@igl.co.in with a copy of cancelled chq and refund form that can be downloaded from [protected]@igl.co.in (Fyi, no such link is available). On inquiring with customer care i got to know that the amount has been adjusted against security for which no consent of mine has been taken and worst thing they have disconnected my phone calls 3 times. It is really pathetic and annoying. This is how you serve the customer. I need my money back to pay other dues failing which i may lost electricity connection. Even on first instance your customer care executive has told me that you will get the refund. Please initiate the refund process and call me for any assistance. My contact no is [protected]. If it is not resolved in due time i will escalate the same to higher authorities. Thanks hemant.