Dude, many people have done this way 'advised' to those who are addicted to gambling but the results are zero.
For this reason, for someone who has been addicted to heavy gambling, advising will not succeed, they will ignore it, as we talk with electric pole, for that way for rehabilitation gambling addicts the best way, After returning from rehabilitation, bring them to other regions, far from gamblers, find him is isolated a place far from technology or the internet, if they want to use the internet, they must leave two or three kilos meters, So it is difficult to reach and the addict is in a place where the people there are anti-gambling, it will succeed in overcoming gambling addiction, not advising.
Why would anyone be treated this way- Isolated from normal world activities for being an addict ?
Anyone who has gone to rehabilitation and is still unable to control his gambling cravings and still needs to be watched and control has not learnt anything and should be sent to rehab until they can control their urges. Restrictions will only reduce their lifestyle, and they will become tired at some point.