What kind of service you specifically offering here? Is this a tipster with 64% win rate or a Casino for sports betting. Give full details of this Brawlbets because it looks like a tipster thread only.

A guaranteed profit and full refund offer is too good to be true on this kind of services since this is still gambling no matter how high your winning percentage. I don't know how you can assure a guaranteed profit while offering only 64% win rate. This is too shady to be true.