So you did not say, when asked, that you had convictions and then, you got another conviction while you were driving your bus but did not tell them you had acquired it? And you expect them to be sympathetic because you say the convictions are new spent? Losing your licence is, I suggest, the best you can expect. You were in a position of trust, btained by deceit, and it sounds like you were trying to get by until you could claim that they were "spent". Making a false declaration to obtain a licence is a criminal offence likely to get you convicted again. And you believe that it is all the fault of a council official who did what you should have done years ago? Your best course of action, to avoid further action, would be to surrender your licence now and move on.