Click on apple care by mistake

Or you might try:

Turn off Mark As Lost on a device

When you find your lost device, turn off Mark As Lost.

1. In the Find My app , click Devices.
2. In the Devices list, select the device you marked as lost, then click the Info button on the map.
3. Under Mark As Lost, click Pending.
4. Click Turn Off Mark As Lost.
5. Click Turn Off to confirm.

You can also turn off Mark As Lost from your iPhone, iPad, iPod touch, or Apple Watch by entering the device’s passcode (the one you use to unlock your device).

Your only option is to follow these instructions→Return a lost, locked iPhone - Apple Support

As stated in your screenshot:

”If found please visit Return a lost, locked iPhone - Apple Support for further instructions.”