Road closure on 14/07/2019 at Hyde Park Corner

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Dear Westminster City Council
On 14/07/2019 between 21:30-22:30 , coming from Knightsbridge bridge road “exit” exit to Hyde Park Corner was closed and diversion was place to follow the road ahead which take the vehicles into UZEL zone (due to the cricket word cup final event )
Can you please confirm who was authorised to block that exit ? Which private or none private company was assigned to manage this ? What measures where taken places to ensure that drivers were not penalised for any ULEZ CHARGES ?
Was TFL informed about this ?

Yours faithfully,
Kamran shahzad
3 Ashley terrace bath

Dear Westminster City Council,
Thanks

Yours faithfully,

Kamran shahzad