Here are various resources:
This support article explains how to connect your AirPods and AirPods Pro to your iPhone --> Connect your AirPods and AirPods Pro to your iPhone - Apple Support
- Links for other devices at the bottom.
If your AirPods won't connect, read this document --> If your AirPods or AirPods Pro won't connect - Apple Support
If you can't connect a Bluetooth accessory to your iPhone, iPad, or iPod touch - If a Bluetooth accessory won't connect to your iPhone or iPad - Apple Support
Learn how to 'Connect and Use your AirPods and Airpods Pro', click here --> Connect your AirPods and AirPods Pro to your iPhone - Apple Support
Go to this page to find your nearest Apple Authorized Service Provider (AASP) or Apple Authorized Distributor (AAD) --> Find Locations
How to make a Genius Bar appointment
1. Go to Genius Bar Reservation and Apple Support Options - Apple
2. Go to "Get hardware help".
3. Select your hardware and continue selecting options requiring replacing parts until you see "Bring in for Repair"
4. Sign in with your Apple ID
or:
Refer to this document for ways to contact Apple ➞ Choose your country or region - Official Apple Support
Select your country (also look for "other" regions), then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.
or:
Contact Apple for support and service by telephone ➞ Contact Apple Support - Apple Support