Is there a reason you have created a second (almost identical) thread ?
I have answered your question in your first thread. This post (https://bitcointalksearch.org/topic/mycelium-question-with-single-use-addresses-5029186.msg45711317#msg45711317) contains all necessary information you need.
You obviously have only imported an address. That's the problem.
Instead of creating a second thread, start explaining HOW you got that wallet.
Because, either you have done something terribly wrong, or you got scammed. This fully depends on the procedure how you created your wallet.
Again: You can NOT send funds without the private key. There is no work-around or 'hack' or whatever.