Called back and received phone number not in service message

Caller: Plus700

Spam call telling me my phone number came across her desk as I was interested in trading shares online.
Accent was so thick I had to ask 3 times where she was calling from, I believe she said "Plus 700" for a third time then launched into a sales spiel.
She seemed quite miffed when I told her she must be mistaken and to have a nice day.

A quick bit o research and plus700's domain is registered in Nassau.
The site claims to be an online trading academy with a money back guarantee.
Best to avoid this one folks.

Caller: Spammer

Don’t answer spam

called , and left no message

Same experience - I missed the call, called back and got a not in service message.

Called back .. number said not in service

Phone no not in service

No message - did not answer unknown number!

Looks like another SPAM caller, if I don't recognize the number, I don't answer. I am on the Do Not Call Register but it must have stopped as the alerts don't appear to be coming through!! As Spam or Fraudulent Call :(

Unsolicited call, no message left, when returned call with my number blocked, not connected.