Poor customer service and ignorance

My wife have an account with above mentioned. With out consulting her they change her prescription date . Because my wife's English is not that good or let's say she can't express her self in English I spoke to the lady of rain and I asked her if I can perhaps speak Xhosa because I'm not comfortable with English .She rep**** that they are not allowed [her name is Wanda the call centre agent] to use any other languages except English. I rep**** that's upsert or ****** do you know we have 11 official languages and freedom of choice. She fully ignored me and continued using English while speaking to me.Then she said she will call back after 2 hours and she never called. When I called again an other agent pick up the fone and I ask her if I can speak in my mother tongue she said yes as long as I'm comfortable. But I did tell her about her colleague who has double standards.