It is offering you Y seats since there are no J or F reward seats. I realise you would like there to be J or F availability, but that supply is finite and is clearly gone for the flight/route/day you are searching for. I presume you would prefer the website to state no seats available, however being offered some kind of alternative is useful to others especially if you have to travel and any seat will do.

I realise though that ba should know not to insult you with a Y seat. Perhaps you should suggest that there is some personal preference which can be added to your account to state that Y seats should never be offered to you.

I am sorry to be so harsh but this really is one of the most silly moans I have seen on here in a while.