Whether, with reference to his reply to question 1529 on 4 June 2018, the full costs of hosting the International Telecommunications Union’s Telecom World Conference in Durban in September 2018 was covered by sponsorships received; if not, (a) what amount of the total cost was not covered by sponsorships, (b) to whom was the shortfall paid and (c) from which budget allocation of his department was the shortfall paid; if so, what (i) is the name of each sponsor who paid money over to his department and (ii) was the value of each sponsorship?