997. Variation of agreement or determination as to time for making payment.

The tenant1 may apply to the court2 for the variation, on the grounds and to the extent specified below, of any agreement or determination for the making of a payment for accrued tenant's repairs3.

The grounds on which an agreement or determination may be varied on such an application are the following:


    (1)     that the expenditure reasonably incurred by the landlord4 in carrying out the relevant initial repairs5 substantially exceeded the estimated cost of those repairs6; or


    (2)     that the applicant is not the person who was the tenant at the time of the previous agreement or determination and that