They said she "was in an open space and was not asked to move".
"We just wanted to make her feel more comfortable."
Outraged parents took to social media to back up the "shamed" mum, with many saying it's double standards.
"Use tits for advertising no one blinks an eye. Feed your child and everyone has something to say!" one person wrote.
Another said: "The shop said they 'wanted her to be comfortable'. You all think if she wasn't comfortable she would have been shopping while breastfeeding? She was obviously fine and fully within her right to go about her day without taking time out to actually sit and feed for 10-20 mins. She can't interrupt her life just because some insecure person can't handle a natural, non-sexual function."