These number keep calling me several times a day, i ignore them. When i called the number back, i got a message saying that the number is unavailable.

Bloody annoying I block the number they ring again off a similar number

Keep receiving call, 9am,6pm,sometimes midnight. I don’t answer.

Unknown number, didn't answer , no voice message left

Called but left no VM.
Called back and the phone doesn't even ring just says this number is currently unavailable.