Safair staff manners

I flew from Cape Town to ORT (11:30 FA112 9 May 2022). The steward, a gent, asked me to pull my mask up above my nose which I did. On his return he abruptly asked me again to pull my mask up or he would reroute the aeroplane. I was completely shocked as I was chewing gum and unaware my mask had slipped down. I am a regular customer and make use of your services at least 2-3 time a month. I have never been so disrespected and taken aback by a person who obviously has a chip on their shoulder. I suggest you take this man for some lessons in manners and client relations before you lose more customers.