You posted an identical post on v-flyer.
You have been given advice here and on there - take it.
The partnership beween VS and AF etc has only just been announced and is awaiting regulatory approval. Don't rely on that to 'save' you by being rebooked onto AF until the partnership has been formalised. And it does not automatically include all VS flights.
The longer you leave it the less options you will have. The sooner you look for alternatives that work for you and the sooner you call VS the better. BTW the fact you logged into your FC account is recorded so you can't say you wern't notified.