Can I spend an Avios-LeShuttle voucher and a Compensation / Credit Voucher (CV) in the same booking?

Yes a Compensation / Credit Voucher (CV) can be used as part payment in the same booking as an Avios-LeShuttle voucher. If used in conjunction with a Credit Voucher, the value of the Avios-LeShuttle voucher will be redeemed against the booking first.