Well that's the weird thing I wasn't doing anything wrong. Kept assigning the second ticket to myself ( as advised) and it would not process. Eventually after about 10 attempts it did thankfully.
Im trying to book x 2 tickets for semi final. I can do so today as Bronze member with 91 points. Trying to add a ticket for a family member won my friends and family ( not purchase history ) and allocated them both in my name but wont accept. Anyone know why ????