Can't kick a member out

[Fear Force]

Hi
I had a friend from Brazil that was in my crew for about 1 months but unfortunately he disabled his account and told me (via WhatsApp) that he will stop so I tried to remove him from the crew but when I reload he comes back automatically, any help?
Here is the proof
I kicked him out:

[Fear Force]

@Fear-Force and here he came back just after I reload

Is this a bug?

[SpecialOne]

Have you tried to do it on App?

Have you tried on a different device/browser?

[Fear Force]

@SpecialOne On different devices, yes but on the App no, maybe it's because he was in the battles

[SpecialOne]

When a user is on a battle, you can't kick him out!