1) yes if your refused they will tell you why.
2) no , most of the time it will not count against you, depends on the reason why you was refused, if you were found to have committed fraud when applying for your app or something serious, then that could effect future visa apps. but most of the time a refusal will not effect future apps, but you must show you've corrected the original reason for refusal, or you risk being refused again for the same reason![]()