I am not so sure why you are so certain that the items/players do not just "vanish" on their own. I don't see why is there a need to report that I have 2 x 117 TOTY Dembele missing, and I have already exchanged one to make UTOTY. The reason why I remembered that I have 2 x Dembele because I was spending so much to get a Mbappe but did not. And when the UTOTY came, EA continue not to heed the sentiments of the players and their associated systems, be it 20 players to exchange for Raphinha. Even when I attained the 117 UTOTY Nunos Mendes, his stats were worse than Signature Roberto Carlos. And EA thinks players are trying to fleece them over missing players. FFS.
With all these considerations, EA still have the cheek to tell us with certainty that the players have "varnish" because of account owner.
To set matters straight, the steps suggested by EA were taken and the players remained to be "vanished".