Refused entry because toddler is not wearing mask

I was sanitizing my hand to observe the new normal at Truworths Secunda when the security called me. To my surprise, she told me that i can not enter the store because my 1 year old is not wearing a mask. On the 16 August 2020, i took my toodler to the paediatrician for a 1 year visit and the Dr advised me not to wear him mask as he suffocates. Today i am being refused entrance to the store because the toddler is not on a mask. I am on my mask, ensure that i observe all safety measures. I tried to tell the security (P Dladla) but she kept enphasized that in my home not inside the store. Well, because i am a young mother without a nanny, then i must just stay at home and never set my foot at Truworths. Very sad that my right as a customer were violated by a security who was not well trained about COVID-19 and the wearing of mask.