Just a quick question : if you're trying to praise or endorse a player, how many times do you have to do it before you get any results? I've tried it with Bale and he responded well, but it didn't effect his price tag
For some players and/or in some cases it doesn't seem to work at all. I tried to sign Azpilicueta from Chelsea, made transfer offers (which got rejected), praised him and told I would do my utmost to sign him (to which he reacted well), but he never became unhappy or made a transfer request.
On the other hand, when I tried to sign Bale before my second season, Spurs initially wanted about 50m for him. Then I praised him and said that I would do my utmost to sign him, both once. He submitted a transfer request and I got him for less than 30m. So maybe there's a random element in there too, if you're having trouble with him. The only thing I can suggest is that you declare interest as well, that might work.