I called back number (03) 8687 2683 reached voice mail saying the persons mailbox is full.

Called me several times, then when I answered said it was Tim calling from "tafe" I said I don't go to tafe, then said I had enquired about a course. I asked what course and he paused and said community services. I said I hadn't and wasn't interested and he tried to recover saying he got mixed up and I hung up.