playstyle plus change on fantacy fc cards ( nico williams)

Nico Williams, fantasy fc card i gave him bruiser playstyle plus and then after some time the playstyle plus changed to slide takle plus i think he gained rewards to earn a 2nd playstyle plus but i already gave a second and so it changed from the one i originaly put to the one the card upgraded to but this is not supposed to happen so I would like it changed back, thanks