So you made two deposits and you don't know to whom you paid to...despite those being two months apart?
Seriously, how did you managed to get the address the second time, you obviously went to that website, you didn't just heck your wallet history and decide to just dump some money into this unknown address, right?
Since there is no outgoing tx from those and nobody batching your outputs I kind of doubt it's even a gambling site, they would have already collected it so if you can't find it in your slit of gimbling site, then maybe you dint send tit to it and some other service or some friend or one of your own address or god knows what.
Wiotuht an outgoing tx from that there is now ay to trace it so best choice:
- go through the gambling websites and check your balance and deposits history (probably you have already done it), so pray it's not a dead one
- check your e-mails, something around those dates might give you a clue
- check your browsing history to see if you have anything in that period that might have triggered a deposit or purchase
- try to look at your conversation history, there might be a hint there on what you did
And of course, pray that it comes to you in a dream, because realistically there is not that much you can do about it unless they spend those funds.