worst service ever - never again

can someone please assist me with getting a refund from debonairs bluehills, both the store aswell whoever is handling my query on twitter is extremely useless and im having no joy with them. i ordered a meaty cram decker on 2020-01-03 at 10;27 and paid via the app, bluehills accepted my order then called about 10 minutes later to advise that they do not have a cheese grillers, i told them to cancel the order and issue a refund , was advised it would take 24 hours to reflect and im still waiting, twitter team keeps passing messages to the team, lol little help they are