These type of things happen to me every time at super stores!
Reason: I wear old shalwar kameez or home clothes!
Last year during Ramzan, I was sleeping and my mom suddenly woke me up and told me to hurry up and get cooking oil from the store.
I went to the store and started searching for the oil, in the mean time 2 girls showed up and said "Kitni dair sa hum counter pay kharay ha, kahan ha tum log ka cashier?" in a harsh tone, I was like Mujay kya pata, ma kaam nae karta yahan! Then the other one started giggling and said sorry.
Though before this, it had happened to me a lot of time but after this incident, I never went to stores in these home clothes!