Abstract: The invention relates to a control arrangement for an application “app” for gamblers, the control including a number of steps. The steps included may include a) identification of a potential member through data input into the app b) verification of the identified user identity, c) registration as a member of the identified and verified user; and d) application for a membership level. The control arrangement membership level limits the periodic spend on gambling and the verified member is incentivised by membership rewards and or betting rewards. The invention also relates to variant methods thereon.