Apologies but I'm no expert in any way re available dates, fare rules etc but saw this on the
Premium Fare Deals thread.
I did a few dummy dates in March and seems to work out.
Needs 2 passengers.
TUN-DOH-CNX
CNX-DOH-HEL
£1710 for 2, £855 pp return which gets 560 TP's and might suit some.