If you are seeing a not-so-fast error message then you are indeed banned for 500 years. Bungie will never tell you why they banned you, it's up to you to review the policies you agreed to and figure it out. You can send in an appeal at the below link but you should note that there is no guarantee you will get a response. If you don't get a response within 30 days, your ban was correctly placed and will not be removed. You will have to play another game as your time in Destiny is over. http://bungie.net/ban There is no support for bans through public forums. You must send your one and only above through the above link.

Those trials matches scream of win-trading/networking manipulation. Both of which are clearly a bannable offense.

People will come in with excuses or just accept that he did something wrong, but I've played with this guy for more than a year (often daily). He's selfless and has done hundreds of hard carries through raids and other activities. Met him through a sherpa run and have built up to where I can help his sherpa runs. He doesn't cheat, run cheats, or anything...he just plays D2 a ton. He's the best example of what you'd hope to find on LFG. Incredibly patient, supportive, and will make sure you not only get things done but find hidden lore or other things along the way. He sherpas for folks on the disabled destiny discord, for crying out loud. Taking people through raids who need extra help and support. He's the best kind of Guardian, one that Bungie should be highlighting, not banning. I'm truly and incredibly baffled how this could happen. All he does is help other people play...why would he be running any kind of cheat? He's not sweating in Trials...he's doing his 200th RoN run with newbs for fun... If folks like this are just randomly getting banned with ZERO transparency on what he possibly could have done...Bungie is more done than I feared. My other clan mate is getting constant Weasel errors that are 100% Bungie side... This spaghetti code is unraveling fast.