iPhone 11 reboot loop

Hi carina116, thank you for posting in Apple Support Communities. We understand that your iPhone is stuck in a reboot loop, and that you're looking to have your iPhone serviced. iPhone service cost and procedures can be found through the following link: iPhone Repair - Official Apple Support

However, before looking into having your iPhone serviced, if you've already performed all the troubleshooting steps within the resource that you linked to Apple Support Communities from: " If your iPhone, iPad, or iPod touch won't turn on or is frozen - Apple Support ", we recommend that you contact Apple Support next. Here's how: Apple - Support - Product Selection

They should be able to help determine your best path toward a resolution.

Take care!