Hey Hachi, thanks for noting comment. I wonder if the user/customer will come back after saying him "Do give it a try after a while" instead, I think more appropriate way would be to tell/respond him when you are done fixing the issue, rather than user checking whether the issue is fixed. Also, the later deepens the bond between you and user(taking appropriate (such) small steps makes all the difference and this is what separates you from your competitors coz everybody has hold on bigger steps).
-Hope this helps :)