As noted you have given us nothing to work on in this thread hense as pointed out by another user there is no way to assist you unless we have this info so I am going on the info I can based on the site that I see. Which is where I pulled up shwing.com
No matter how this plays out you seem to have an email issue on that server or a spam filter issue since I have thoroughly tested the reset password feature and it works.
Now you can get your server guy to run a query like this to reset the password to say password and you can temporarily login to change it to what you want by running this query
Code:
Content visible to verified customers only.