Server migration lost players?

Revenue giants partners I have a issue and wanted to ask if any other affiliate partners have* experienced something similar,

For a long time I have been generating good monthly comms and had a good relationship with revenue giants and sent them many active players from different locations around the world. From April 2018 my commissions and activity went almost to zero instantly . I contacted revenue giants and was told they made a server migration and that some players were not migrated over, they made a small credit and then next month again no activity. Having contacted revenue giants they tell me that there is no issue and the account is fine.

I understand players lifetime comes to an end but my issues is how can all my active players from all over the world stop playing at the same time? its not like they all got together an decided to stop playing ? Has anyone else experienced this?