My 1000 points have been added today, purchased on 13th March
Don't bother. Not tracked and hassle getting it sorted.
I'm surprised they didn't just point to "...amend these terms without notice..." and "withdraw this offer at any time". Or point 10 in the terms on the link to their website for more general terms relating to Nectar: Website Avanti West Coast reserves the right to: At any time, withdraw Nectar points that were awarded in the case of fraudulent activity or in error. Delay or refuse issuing Nectar points. Amend these terms at any time Hard to think of how much more they could have written into their terms to permit them to reject every claim for Nectar points whenever they feel like it, which is good enough reason to avoid them IMO. Unless a query to Nectar helpdesk would get your points sorted without grief in the event they don't come through automatically.
trying some of the previous similar offers - none of them tracked, then spent hours complaining on the chat - who instead of helping is looking for issues why not to give you points, they will highlight non-existing requirements like wrong train, wrong type of ticket, wrong dates, too low amount, and in the end copy of the offer is required for them to proceed with the goodwill points - after multiple chats where some of them ended by saying the points will be with you in the next 30 days - only to come back within 30 days to complain again :-) hard pass
childs ticket Birmingham new st to Birmingham international £1.65