Discovery cannot get things straight!

I TOLD you that I would be overseas for 3 months and you even supp**** me with 3 months of my chronic medication. Before I left South Africa I changed my method of receiving OTPs to EMAIL. Now I am overseas and I try to log in to my account and you have reverted OTPs to my SOUTH AFRICAN cellphone which does not work here!!!! Why is the customer service in South Africa so dismal? Please change my method of OTP back to email. And no - I am not going to phone you in South Africa from Thailand to ask you to rectify your mistake. You have my email address on record, you can contact me via that or give me an email address I can send my complaint to at Discovery Health.