You can also use the REST API as an alternative for reprovisioning by running the following command:
curl 'https://api.provisioning.nrfcloud.com/v1/claimed-devices/YOUR_DEVICE_ID/provisioning' \
-H 'Content-Type: application/json' \
-H 'Authorization: Bearer YOUR_API_TOKEN' \
-d '{"request": {"cloudAccessKeyGeneration": {"secTag": 16842753}}}'
For detailed API documentation, see nRF Cloud REST API.