You can have your hair however you like for the interview but if it is long you have to wear it up whilst working.
Either. Some interviews they will get you on the shop floor so it is best to bring one just in case!
It is a very casual interview
For the interview yes but when working it has to be tied up and covered.
You can have it down.
The interview it just the manger talking to you so as long as you look smart and make an effort with you appearance it doesn't matter
Hair down for interview
Your can have your hair down for the interview but you have to have your hair up when you work there also you can not wear jewllery when working only wedding rings no make up
You can have it how you want it
For the interview it just has to be neat and professional.