I've received a couple in the UK. Low end telemarketers (overseas, poor English, zero knowledge of their subject matter) and clearly originating from random dialling or a list of mobile numbers without names, so making traditional boiler room operations seem sophisticated.

I wonder at what point it becomes profitable to hire telemarketers to drive interest in a cryptocurrency you've bought into so you can pump and dump, especially if these telemarketers are coming from overseas where they're notoriously cheap.

Watch the John Oliver segment on cryptocurrencies from this weekend. They have a promo video from a company that is literally advertising pump and dump schemes.

Same in Norway. Last week "Åsted Norge" reported about it.

The cases they told about were pure scams where the fraudsters stole the cryptocurrencies directly.

There’s almost certainly no actual cryptocurrency involved. This sounds like a generic money-wiring scam.

I received one such call (in Italy)...