Nah thats a different deal, they did away with the free wine one ages ago. The Gastro one is permanent and replaced it. Its just Main, Side & starter or desert. Say we wanted the Paella, it used to be £7 and then went up to £8, now when they introduced this deal they pushed it up to a tenner,to encourage you to buy the deal of the other two items but often the sides are wholly inappropriate for the mains so you not only get encourage to buy stuff you don't really want or pay a highly inflated price for the bit you do want. If you still do the deal you say end up buying something else to go with the side you bought
Not playing that game, I just don't bother buying the Paella or whatever else it is that I wanted