Hello, I was on a flight from Hong Kong to Taiwan and before taking off I had made a flight plan. When I was cleared for takeoff, I was told by the atc that I should fly runway heading at or above 3000 feet. Soon after takeoff, I wanted to switch my autopilot on and by mistake I switched my GPS which caused the aircraft to turn before 3000 feet. All of a sudden the ATC Controller ghosted me without giving me any warning. To the best of my knowledge and from what I’ve read on other posts, a controller always gives you a warning before ghosting you. For such a small mistake I’ve been degraded to grade 2 for a week. This seems to be really flawed and unfair. Please help!