Telephonic communication with useless sales agent

I chatted to Minenhle Guliwe on Monday 29 Sept 2025 and she did a 3 way call with my adult son Uryan,herself and I and confirmed new membership for Uryan on the Keycare Plus medical aid and I furnished my banking details for cover to start on 02 Oct and debit order to start in arrears from 01 Nov 2025.it was a telephonic confirmation where she promised that a certificate will be sent as confirmation of joining the scheme. Since then we tried mailing her , calling her with no success. When my son logged on, they now asking for 3 months bank statement and salary advises. Also, the premium is reflecting over R3000 yet as per our telecon it's around R1800. My son is unemployed and does not have a bank account which was communicated to her on our telephonic conversation. Absolutely disgusting service.