| (i) | - | the 1st day of April, 2019, the provisions of this sub-section shall have effect, as if for the words "twenty-one months", the words "twelve months" had been substituted; |
| (ii) | - | the 1st day of April, 2020, the provisions of this sub-section shall have effect, as if for the words "twenty-one months", the words "eighteen months" had been substituted: |