How can I change my apple care plan to loss or theft Plan

Be aware of this clarification too.

AppleCare+ with Theft and Loss is available only for iPhone in Australia, Germany, Japan, the United Kingdom, and the United States.

Extracted from the 1st paragraph in this support article:--> File a claim if you have AppleCare+ with Theft and Loss coverage - Apple Support

Regards

Giulio

Call Apple Support at 1-800-APLCARE.