Bungie will only ever ban people who have violated their policies. Bungie fully investigates a user for any violations before applying the 500-year ban. Since your friend is banned, Bungie found evidence that your friend violated their policies. Your friend will need to go [url=https://help.bungie.net/hc/en-us/articles/360049024492-Contact-Form-Appeal-Ban-or-Restriction]here[/url] to submit a ban report and then wait 500 years for the ban to expire. [quote][/quote] Also, it is impossible for you to know if your friend is telling the truth or not since you don't know what they are doing all the time and what they have installed on their device. You can only speak for yourself, nobody else.