"so is this the withdrawl address you have set into bitbargans because this address is created last month and i think you also have its private key in any of your wallet brecause if you copyed it from someone other then it should be used multiple time but it is not.so tell me how many wallets do u have"

Yes this is the address my electrum wallet generated for me when i opened it up earlier today.
I have around 3 wallets in total (one default and 1 that i used my seed key to open up which in turn duplicated it)

I have no recollection of setting up a watch only wallet. I have absolutely no idea how this random generated code came up, especially when it is linked to someone elses.