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OK, that makes more sense.
However, I would still suggest that your attorney has very legitimate grounds for asking for a continuance. If you had no way of knowing that you needed to be in town, and you are now out of town, it is fundamentally unfair to demand your presence in court with three days notice (and not even a full business day's notice). Especially since your attorney might withdraw his appearance and won't represent you at trial without additional payments. You should be able to request more time to obtain another attorney to represent you. The law only requires that you have actual notice of the court date, which you had when your attorney was contacted. But most judges would take into account the fact that you had no notice when you left town, and will extend the trial date to accommodate that.