814. Reconsideration of rent after registration.

Where the rent1 payable for any dwelling2 under a restricted contract3 has been entered in the register4, the lessor5 or the lessee6 may refer the case to the appropriate tribunal7 for reconsideration of the rent so entered8. The appropriate tribunal is not, however, required to entertain9 a reference made otherwise than by the lessor and the lessee jointly for the registration of a different rent for the dwelling concerned before the expiry of a period of two years beginning on the date on which the rent was last considered by the tribunal except on the ground that, since that