With reference to the presentation by the Special Investigating Unit to the Standing Committee on Public Accounts on 20 October 2020, (a) what are the reasons that the municipal-level data on COVID-19 relief funds expenditure for April 2020 to August 2020 was not available at the time of the report, even though data on expenditure related to COVID-19 for 15 March 2020 to 2 October 2020 was already available on municipal level and (b) on what date will the municipal-level data on COVID-19 relief funds expenditure for April 2020 to August 2020 be available?