Nike turned me down because of my mask being a cloth bandena

After a long trip to cape Town i headed off to Nike factory store access park Kenilworth only to be turned down by security, they did not allow me in the store because I had a cloth bandena as a mask as per government regulations any cloth mask can be used Im a Nike fanatic and I've never been turned down at any Nike branch around the country due to my mask being a cotton cloth bandena the security told me it's there store policy which is the first time hearing about this being a regular customer nationally, honestly pathetic and il never allow people I know to support that branch