Betsson recently sent out a mass communication that they're closing affiliate accounts, pointing to their terms and conditions. If you haven't send x amount of NDC in 6 months, they will close your accounts and steal all your players. My guess is that they are having financial struggles since since they don't seem to have enforced something like this in the past or they recently added the terms. But something fishy is going on with them. My guess is they don't have long to live.