First, I scheduled an appointment for the replacement of the battery on my iPhone X with Best Buy, supposedly an Apple authorized service provider. Best Buy informed me that they did not have the battery in stock and to schedule an appointment with the Apple Store 10 miles from my home. I opened a work order on-line with Apple and indicated in the work order the purpose of service was to replace an iPhone 10 battery. Upon arriving at the Apple Store, they checked my phone and agreed that I should replace my battery. However, they did not have the battery in stock and would need to order one, told me I needed to come back in a few days. Why didn't they tell me that they didn't have a battery is stock when I opened the work order or prior to my schedule appointment. Apparently, Apple does not respect my time or the expense to travel to and from their store. You would think that a technology company would have the tools to review service requests and take the appropriate action rather than inconveniencing their customers. This will be my last iPhone and I have lost all respect for Apple.