I had a bug when I woke up this morning, a transfer offer of 100k for a player at 99, not too awake at 5am I clicked on validate...I know it's my fault but it's a bit of a fraud I feel...
The manager is new (or at least his account is) and I don't know what his intention is...
Is there anything I can do?

Slt nono, player and club link I think the admins are going to ask you this

A. Seka

He lent it straight out to piss off. 👍
Which, by the way, clearly shows if there was any doubt that it's a multi. No new player would behave this irrationally.

Azby: Il l'a prêté direct pour faire chier. 👍
Ce qui, au passage, montre clairement si on avait un doute que c'est un multi. Aucun nouveau joueur n'aurait ce comportement irrationnel.

Um... he went on loan to the club that sold him, so we're not wide awake, are we azby?

Ah yes indeed!
I'm becoming bitter.

Azby: Ah oui effectivement !
Je deviens aigri.

I put in a loan request straight away, as I need him tonight in the league... It was cool of him to accept, he'll finish his career at this new club, which is a lesser evil for me...
But two very distinct buttons for accepting or refusing a transfer would avoid this kind of misunderstanding.

Well, it seems to me that you've got "double" confirmation!
A "tick" for validation
A "crossed-out circle" for a refusal

In short, I agree with you, if you've got big fingers, you're no good at replying to "incorrect" offers!

Yes, and when I woke up at 5 a.m. my eyes weren't fully open yet and I'd just realised I'd run out of coffee...

Similarly, when I'm out of coffee, I don't care about VF... I've even won a match when I was out of coffee! ^^

Just make the boxes bigger to avoid errors....It's true that errors can happen very quickly on a phone....

There is a double confirmation, admittedly not very comprehensible, but it does exist... what do you need?
A double authentication request? (no, that's going too far, I admit!)