If a civil action in a general district court is upon a contract, express or implied, for the payment of money, or unlawful detainer pursuant to § 55.1-1245 or 55.1-1415 for the payment of money or possession of the premises, or both, or is brought by the Commonwealth or any political subdivision or agency thereof for the collection of taxes or to enforce any other obligation for the payment of money, an affidavit and a copy of the account if there be one and, in actions pursuant to § 55.1-1245 or 55.1-1415, proof of required notice may be made and served on the defendant in accordance with § 8.01-296 with the warrant or motion for judgment as provided in § 8.01-28 for actions at law, whereupon the provisions of § 8.01-28 shall be applicable to the further proceedings therein. The affidavit and the account if there is one and proof of appropriate notice may be attached to the warrant or motion, in which event the combined papers shall be served as a single paper.