Caller: Have no idea

This number 3 9675 5210 keeps bloody calling me and sending me voicemails in Japanese or Chinese, keep in mind I haven’t done online shopping, I’ve got nothing to do with Japanese or Chinese, if it’s clothing brands, or other sh*t.
And the other day I got a text message 0450 576 978) who text me about how my delivery is on its way or some sh*t, I haven’t bought anything, AND it was in Chinese or Japanese. I used a google translator to see what tf they wanted