Uncomfortable fitting rooms

Today whilst shopping at Mr price in Cape gate mall in brackenfell. I was highly uncomfortable and dissapointed. I went to fit on clothes as I normally do. I haven't bought underwear I'm a while and had to fit it on due to no return policy. But what made me uncomfortable is that there was a guy standing there to let me in and give me the tag for the amount of items. And i had about 9 items so had to fit on. Get dressed and swap out to fit on the rest. But coming out and having to swop underwear and a guy grinning at me was a horrible experience. I just feel like ladies and fitting rooms are very personal. I don't feel comfortable with a male checking my underwear size. I spend lots of money at Mr price every month and I'm just not happy with this. I want to feel confident and comfortable otherwise I won't buy anything. I'm an easy going person but this just ruins my day. Where I was doing some retail therapy turned into a horrible experience for me.