I cant take my cka exam and no one respond to my ticket TCCS-107217

i scheduled my exam on 31/05/2024 6.30 asia/tokyo time zone ive be there on time ive waited but the take exam button didnt shows i open ticketgs i took screeshots and i sent them to the support but i get no response this is dissappointing i put mu money and all my efforts to pass this exam !!! help me !!!