To self-exclude from non-BetStop bookies, you will need to contact the customer support via e-mail, phone or live chat, stating your wish to lock your account temporarily or indefinitely.
If you’re looking for a way to keep yourself away from gambling, then blocking softwares such as GamBlock and Betfilter are excellent options. These programs can be used on both computers and mobile devices and won't let you visit any gambling related websites.