Thanks. So I'm looking at some of the debugging logs, and 11 days ago, you only had about 18,000 coins, so unless his happened before that, the 100,000 number doesn't sound right to me.
Thanks for the reply. So, there really is only one way to lose coins, which is to a)Spend them, or b)an error in renshuu. With "error", the only way it has ever shown (and that bug has since been fixed) was that the coins went to zero. In your account, the logs that I do have shows a slow decline, and at the point of reporting it, the remaining number of coins suggests that it was not reset down to 0. (If it was reset by the same bug that existed previously, a large number of things throughout renshuu changes, not just within the garden).
At the moment, I do not see anything that points towards the coins being lost by an error on renshuu's side :(