It is indeed a huge scam network. Scams will typically either take offshore companies or simply invent fake companies. Only rarely, they are operated by companies in Europe as is the case with the Capital Letter scam network. Capital Letter GmbH, registered in Munich, Germany was the operator of several large scams until the end of 2020. In addition, two other companies also registered in Germany, Brunnlitz GmbH and Tokkata Software GmbH, participated in the scams. All three companies are operated by Ukrainian individuals; all received warnings from regulators.
It is about time for regulators to take stronger action against fraudulent marketing campaigns like Tesler, Bitcoin Prime, and myriads of others. These fraudulent campaigns are constantly acquiring new victims for the hundreds of active scams and collecting commissions for it as a so-called Introducing Broker. These fraudulent campaigns are created and operated by digital marketing agencies. 8 out of 10 of these campaigns, like Tesler, come from the workshop of Israeli agencies. The UK FCA issued a warning against Tesler.