Indian Oil Corporation [IOC] — gas refill invoice

Address:

Kanchipuram, Tamil Nadu, 600100

Consumer no cx 12909346
Refill booked on 26.01.20 with ref no.
[protected].
Online payment made on 27.01.20.
Invoice for rs.734 generated on 11.2.20 under ref. 5-[protected] as per sms received from ioc.
Fresh invoice for rs.881 under ref no.[protected] is generated on 12.2.20 without honouring the previous invoice.
Refill booked, payment made and sale is invoiced. Delivery is delayed deliberately to collect the higher price announced on 12.2.20
Unfair trade practice unbecoming of a reputed psu.