Long story short went into Next changing room on the women’s floor and there was a man in there.
I complained onsite to just get ‘oh ok’ so complained to HQ.
Their response was that all their fitting rooms are now unisex (even though store staff said they were women's) even if they are on separate floors I.e women’s or men’s.
I queried with them why they didn’t provide lockable doors etc and provide some level of security other than a curtain, along with some signage.
They escalated my complaint and they got back to me saying they feel their fitting rooms are appropriate as they are and won’t be publicising the unisex nature via signage.
I get it’s a trend to make fitting rooms unisex, but surely letting customers know so that they get to make a decision if they want to use them or not, should be the bare minimum.