Caller: internet scam call

received a call from this saying that I had missed a call from my "internet provider" saying there was a problem with my account, as soon as I heard this I ended the call. I also received calls from (03) 8763 7640, 0438 870 778 telling me the same thing, 1 minute later I received a call from 0415 225 031, which was supposedly Amazon calling rearding my non existent account.