I just got back from an appointment at Carbon Comp...

I just got back from an appointment at Carbon Computing to have my iPhone 6 battery replaced. I specifically made the appointment for a battery replacement earlier in the week. I show up only to be told that they don't have any batteries in stock and that it will be 2-3 weeks before they receive new stock. While I understand that this is a matter beyond their control, couldn't they have called me and let me know ahead of time instead of me wasting time and money to get there?

1 Star for poor service