In Juvenile Delinquency matters brought pursuant to RSA 169-B, if appointed counsel must withdraw due to a conflict of interest as defined by Rules 1.7(a), 1.9(a) and (b) and/or 1.10(a), (b) and (c) of the New Hampshire Rules of Professional Conduct, counsel shall forward a Notice of Withdrawal to the court and substitute counsel shall be appointed forthwith. Court approval of a withdrawal shall not be required in this circumstance unless the Notice of Withdrawal is filed less than 20 days from the date of a trial in which case court approval shall be required. Automatic withdrawal shall not be allowed and court approval shall be required if the basis for the withdrawal is a breakdown in the relationship with the client, the failure of the client to pay legal fees, or any other conflict