You guys probably misread what he wrote. He says that he sent a deposit to a previous BTC address that was used as a withdraw address. Not the proper way to do a deposit and this might lead to loss of funds.

Normally when you make a deposit to a gambling site or exchange . They give you a dedicated deposit address. You send funds there. When there is a deposit detected the casino credits your account. Depending on how they handle cold storage it might sit at the deposit address until someone else makes a withdraw.

So problem is, he made a withdraw, and later sent BTC to that withdraw address. That withdraw address might of been a deposit address for somebody else.  That person will login into their account, see some free money and just assume it was some gift and use it.

Either way, he should contact the support and they might be able to send it back to the source address if it wasn't already spent.

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you can try exodus wallet . its easy to use , safe and secure also supports many kinds of altcoin not just doge  . 

btw im not related to them , infact i was also looking for a doge wallet and my friend recomend it on me before  . i also heard coinpot and use them before but not now  .  i only use them before when i was still active on joining a faucet  . i heard coinpot was shutdown long time ago  ? but thats impossible because you still deposit on them meaning you can still open them right  ?

 

If blockchain has confirmation then the problem definitely is CoinPot. But to my knowledge, that faucet service has a very long history of problems I wouldn't advice using that as a wallet for the long term. One more issue could be that doge deposits require a lot of confirmations? Good luck contacting support.