Indian Oil Corporation [IOC] — refund not received of the amount paid online for a cylinder

Address:

560070

A gas cylinder was booked and the amount was paid online on the 30th jan 20020. To vishwanath gas agency, south bangalore.
The delivery boy insisted that the amount be paid in cash at the time of delivery.
A complaint was made by phone reference of which is iocl sr status update. Sr no[protected].
No reply from the agency nor the refund so far.