Thanks,
@MattA.
She managed to get the Velocity Membership number to take, she applied the sign up bonus, then applied an addition $50 credit to my account to apologize for the inconvenience. However, the sign up bonus she added was only $100 because that's what is currently on offer. When I pointed out that the offer at the time of me signing up was $150 (I'm in Vic) she said that she can't add any more today and so the inconvenience credit would have to suffice, said goodbye and hung up before I had a chance to say anything else!
So no recompense for the inconvenience (and based on the previous calls, I know I will have to wait 48 hours for the points to be transferred.)
What a way to start off with a new supplier.