Denied to go to fitting room

I was at Mr price the shop closed while doing the shopping since i have everything i was looking for in my shopping trolley then after done shopping i went to go fit my clothes then i was told the shop is closed i was denied to go to fitting room.

I asked the manager why is still allowing us to be inside the shop if she cant allow us to fit the clothes he said shop is closed i said you should hv chase us to leave your shop.

Cause i have been doing shopping in many shops i was never never denied to fit clothes if shop closed while im inside i find stupid and im very disappointed with Bloemfontein