A decision by the regional office Committee, operating within the scope of its authority, denying waiver of all or part of a debt arising out of participation in a VA benefit or home loan program, is subject to appeal in accordance with 38 CFR parts 19 and 20. A denial of waiver of an erroneous payment of pay and allowances is subject to appeal in accordance with § 1.963a(a). There is no right of appeal from a decision rejecting a compromise offer.