Very good point
I will also add that spirituality can be very powerful for healing but it is usually part of the healing solution, not actually the whole solution. If there is any one that is struggling with a gambling addiction, we should encourage them to accept spiritual growth and seek professional help. Because there is absolutely no shame in using every available tool for healing.
Are you referring to some kind of ruqyah for someone who can no longer let go of their gambling addiction? Because to me that is quite strange and sometimes doesn't make sense because those who are addicted to gambling usually do so because they can't calm down their emotions so they keep trying to get back what they have lost. And that is a very difficult job so the real medicine that such a person needs is to be in a calm environment with no tools that can make them continue to access gambling sites. And one more thing is one person who is able to calm them down in order to direct them to other better things so that their mind is no longer led to gambling.