If I have already paid for and am in the process of completing a CAF 1.5 on the FFC platform, can I upgrade to CAF 1.6 for no extra cost?

No. If you wish to complete a CAF 1.6 you must purchase FSLM on the Worldly platform and complete the assessment there. No refunds will be given for CAF 1.5 assessments started on FFC and not completed.