I’ve noticed my local McDonalds fakes their prep times by pretending all the orders are “ready to collect” (then immediately marked as collected) on the system

I’ve noticed my local McDonalds fakes their prep times by pretending all the orders are “ready to collect” (then immediately marked as collected) on the system way before they’re ready. As a customer it’s really annoying because you go up to collect it and are told (as if it’s your fault) to go away and they’ll call you. I wonder who I could complain to? Presumably the local manager is actually in on it so they look good to head office.