The lyrics are correct, it's just that some of them are a bit nonsensical.
Also, I've been saying that it's "I don't want ya" since release, I literally don't get why people think that it says "I don't want it / I don't wanna"... and even with the lyric video, people are saying that it's WRONG. Honestly. Especially in the final chorus, it's OBVIOUS that she's saying "ya".