I could not verify this from public evidence. The Electoral Commission says it aims to respond to complaints within 20 working days, so a June 11 letter could still have been pending on June 23, but that policy does not confirm the actual status of Lee Anderson’s letter. Public coverage confirms Farage’s June 23 complaint to the Electoral Commission and notes the Commission was approached for comment, but I found no public source showing whether a substantive response to the June 11 letter had already been sent. Sources: Electoral Commission complaints page / complaints policy; Civil Society, “Farage files second Hope Not Hate complaint after charity cleared”; The National Pulse, “Farage Demands Elections Regulator Probe Far-Left ‘Hope Not Hate’ for Unlawful Campaigning.” (electoralcommission.org.uk)