Prepaid Visa In Winnipeg If I Buy A Prepaid Visa Gift Card With Mastercard Can I Use It On Gambling Sites?

If i buy a prepaid visa gift card with mastercard can I use it on gambling sites? - prepaid visa in winnipeg

Currently, MasterCard is not allowed to use their cards for gambling. But if I have a prepaid card with the Visa gift can I use? I asked myself before buying. Some say you can not have the green dots or something. What does this mean? Thank you for the advice.