That's my problem, because the chromecast team have said it's now a
Google issue and not their problem. Despite the fact they were the ones
who got me to delete his account.
Got my issue sorted (sort of) with help from the chromecast online chat
help team. In the end they got me to do a factory reset of the
chromecast and delete my sons entire google account. That fixed the
issue, but now my sons Gmail etc had been delet...