Thanks a ton for the quick reply.

Just for my understanding..

Lets say if I book from London to Swiss Outbound 9th Feb and Return 15th Mar today.
Then cancel ..my guess is it will give me a option to get Voucher and I will get with extended voucher date. Is that what you mean ?

Are there any cancellation fees involved as well ?

And as I read in conditions it says " If travel using a Companion Voucher is cancelled more than 24 hours before departure then the Companion Voucher will be re-issued to the Cardmembers Executive Club account for the remainder of its original validity period which is 12 months from the date of issue for Classic and Premium Cardmembers, and 24 months from date of issue for Premium Plus Cardmembers. "

Can you please let me know...how did you get the above information and why the date is specific to Sep 2022.