Good luck to head office, mine are on the same phone number and the same email address (using the plus addressing trick) paid for with the same card for a decade now. They must have some list of people to "flag".
I don't work at Coles so I am not sure, but having worked in FMCG, more specific grocery, both at a vendor and also at one of the major supermarket chains, I doubt anyone in the office would have any interest on this. As long as there is enough stock, as long as allocations are done right, the promotion bucket money is used, the sales is meeting budget, there are more important things to do and bigger fish to fry.