Just told Full Time associate’s can’t request unpaid time off

Hey all. (Sam’s Club employee here, but I figured I’d post here also) I requested 3 unpaid days off in April. My manager notified me yesterday that as a full time associate if I want days off I need to request them as PTO and that she can no longer approve unpaid days except maybe one here or there or under certain circumstances. I asked her if this was a company thing and she said yes. I can’t find anywhere that says it’s company policy to not allow unpaid days off as a FT associate. Has anyone else experienced this or is this actual policy I don’t know about?