Scrooge wrote:While a letter to SRB may work, I would be more inclined to go in front of a court and ask for relief in this situation, the OP was promised a free flight and VS has failed to deliver, yes they are covered in the T&C's, however, at some point a court is going to rule that the T&C's place an unfair burden on the passenger, then VS (and all the other companies that include wording along these lines) are in trouble.
It wouldn't take much to convince a court that yes while VS did offer a free flight, they also made the redemption of the flight impossible, hence compensation is due.
That will never work. From the brief details the OP has given, they have tried for 1 date and there is no availability, no court is going to rule that VS is being unfair. VS haven't failed to deliver, they never promised a free flight on a specific date or gave specific guarantees that it could be on whatever date the customer wanted.
Whilst we don't know the exact details and what the OP was told, there is never going to be a time when a company gives out such compensation without any strings attached. It just isn't practical, what if a flight is fully booked, are VS expected to bump off a paying pax because the voucher holder wants to use their free flight?
The vouchers have ample allowance for use, the only issue if the unacceptable length of time it took for the OP to receive the voucher.