USA: Went to apple store to replace my iPhone 6 battery, after waiting for two hours, an assistant told me to hand of phone and asked me to come back after 3 da

USA: Went to apple store to replace my iPhone 6 battery, after waiting for two hours, an assistant told me to hand of phone and asked me to come back after 3 days (&probably wait 2-3 hours before i get my phone). didn't replace the battery UK: Went to buy iPhone, had to wait few mins in "line" , bought and came back within 1 hour on opening day ..