959AG Chargeable persons: no appeal against self assessment.
No appeal may be made against—
(a) a self assessment made under section 959R, section 959T or section 959U,
(b) a self assessment amended under section 959V,
(c) the amount of any income, profits or gains or, as the case may be, chargeable gains, or the amount of any allowance, deduction, relief or tax credit specified in such an assessment.