Impact of having insurance cancelled?

[JQ]

Chap next to me has just has his home insurance cancelled by his insurer. Having gone through a bank account switch payment of the direct debit has not been made. Bank blame insurer, insurer blame bank. His insurer is not prepared to resolve the matter and consider the matter closed and his insurance cancelled.

He's taken it on the chin and is off getting new quotes. It's often quoted on here that cancelled insurance can have a serious impact going forward, so I'm just looking for an idea of what the actual real world impact may be. Is it going to push up the price of his insurance, if so will it be significant, or will it just be that some insurers won't want to quote?

Edited by JQ on Friday 29th August 10:38

[JQ]

Cheers. Was worried he was setting himself up for future pain by not getting it resolved. I'll let him know.