Terrible absalutely terrible

We upgraded our contract, they say in 7 days we can send it back if we are not happy. So we recieved this nokia lumia 530. The thing has terrible signal and people who phones says they cant get through to us. So i phoned customer care on 111 and explained they gave us another number which in turn sent us on our way to phone another number which in turn said we must phone another number and which in turn said we must PHONE ANOTHER NUMBER and they DID THE SAME, when we EVENTUALLY reached the person she wanted to talk to the contract owner which is my mother, she can not speak english very well but she tried and couldnt understand the lady very well so she (my mom) asked if she can give the phone to me so i can serve as a conduit but then the lady hearing my mom struggling with english insisted on speaking to her. So after sending us from point A through to hell. She refuses to speak afrikaans we live in a country of 11 languages and they work in a CALL CENTRE WITH THE PUBLIC and cant speak afrikaans and force people like my mom to speak english. I spent like an HOUR waiting on CALL ANSWER just to be told to phone ANOTHER NUMBER... ONE WORD PATHETIC VODASUCK.