Was there a war going on where all hands were needed, but he refused to contribute?
Yes. If "not responding in any way" can be deemed a refusal.
Was he assigned to an army by his Lord, but refused to follow the marshal's orders?
He was asked if he wanted to join an army, but never responded.
He was given multiple chances to engage with the realm and do something, but did nothing. For two months. He was sent repeated messages and ignored them all.
