I’m just a relative newbie so I haven’t seen many of TWS offers, but hey no reason not to try different things - golden bottle, free bottle when buying a case of 12. If it’s not a success don’t do it again.
Whatever they try there is always going to be someone knocking it. You could try ‘ buy a case of our special under £7 wines and get a classed growth claret free’ offer, but you would probably still get someone complaining they only got a third growth!
To repeat what’s already been said if you weren’t planning on buying a 12 case don’t, but if you were then it’s a bonus.
Personally, I am not in a position to take advantage as my new company have not paid correctly for two and a half months. Never mind.