Modify incorrectly formed https url .. Help ?

My .htaccess look like this ..

# Correct incorrect URLs
# ----------------------
Options +FollowSymLinks
RewriteEngine on

# Make complete URL ... i.e. if a shortened  url is give ..
RewriteCond %{HTTP_HOST} !^www\.jennifersofwalsall\.co\.uk$         [NC]
RewriteRule ^(.*)$ http://www.jennifersofwalsall.co.uk/$1                   [R=301]

# Always use SSL in store , if a request is to the store force "https"        
RewriteCond %{HTTPS} off
RewriteRule store/(.*) https://www.jennifersofwalsall.co.uk/store/$1     [NC,R=301]

# Correct possible additional trailing slash caused by previous rewrite  ..
RewriteCond %{HTTPS} on
RewriteRule store//(.*) https://www.jennifersofwalsall.co.uk/store/$1    [NC,R=301]

##############
The above seems to work pretty well but the following does not, i want to rewrite
"https://myname.com"  as  "https://www.myname.com"   (i.e. The SSL certification requires a properly formed url).

I have tried,
    various things including port 443 but so far without success.

Please Help !

ChrisColeman.