Apply to be a non-preferential creditor if you can prove you had doge there.
Judging by the eth sale I doubt they will directly return coins to creditors. They will probably sell them and return cash instead.
Page 12 of the insolvency/liquidators annual progress report from 26/04/2016 contains a form for letting the liquidator know what you are owed. This is the link to it.
Sorry, I don't know if that's one of their wallets. If you have screenshots, or some other proof of your deposit it might be worth sending that form off.