Getting battery changed

I tried to go in the Leeds ‘boutique’ today and the guy was on the phone, completely ignored me and then proceeded to speak on the phone about how he wanted to give customers a full experience when they enter.

Cannot comprehend why he decided to act as though I didn’t exist. I simply want to get the battery changed in my watch and was considering buying one for my partner (honestly the experience has put me off so much I think I’ll go for a nicer brand).

But since I couldn’t get my question answered, can you get the battery changed in store or do you have to send off to workshop and where does one send it to?