Hey there;
When someone who is dissolving their account wants to give you a larger number of pets/items, please send in a help ticket about it:
help/gethelpPlease don't simply trade them over spontaneously, and wait for the feedback first. ^^
(What's done is done now, but you'll still want to get in touch regardless to ensure the situation is properly cleared up, and refrain from trading any more things between the accounts in the meantime.)