That phone probably was a scam

It looks like the phone call I received on 25 May was a scam. I think they were just trying to be intimidating to possibly get a credit card number or something like that. If they were going to invoice me, they would have done it by now and I am certain that only a few months ago, the same person rang me up claiming that I'd signed up to sponsor their book and that it was now ready and what schools did I wish it to be sent to. I'm sure it was the same person.

If I really had have signed up to this, they would not have called my mobile phone number for starters, they would have my correct name, I would have already paid for whatever it was I was supposed to have purchased and I would have had to have sent them some sort of confirmation as per ever other ad I have signed up to.

Watch out for this. I can see others getting conned without thinking about it.