Thanks for the feedback, I had already done as you explained, but the response I got in my email is the same as yours.
That I should open a ticket at the (VIP Helpdesk), it turns out that I don't have an account there, I'm an end customer.
It is not possible that there is no way out of this problem, after all, Teltonika only exists because there are final consumers who use its products.
I have the invoice for the purchase, and your partner company that sold me the modules has no idea how to solve it.
Finally, I really don't know who else to turn to.
As a last attempt, I'm going to get on LINKEDIN and get as much contact as possible with the directors, CEO or whoever I can find there, to forward my problem to them.
It is not possible that the company does not have a standard procedure for these cases, instead of throwing the customer from one side to the other, even knowing that nothing will come of it.