Using faucet hub i withdrew 2000 doge coins. Faucet hub being a micro wallet i had several different addresses per coin. My problem is now i cant find my 2000 doge coins? I dont know which platform or site that particular doge address is linked to. How can i find out where my doge address goes to or
As far as I'm aware, there is no easy way to be able to identify which wallet/platform/site an address is linked to. That is to say, there is no "global directory" etc. At best you can put the address into Google and see if it pops up any results relating to a particular website (unlikely)... or you can try searching for that address on a block explorer and see if any of the transaction history triggers your memory as to what wallet/site it might be from.
how to reverse the transaction?
This is impossible... there is no way to reverse transactions.