Some people find a problem logging in. They change their password, but it doesn’t seem to work. One reason can be that your browser retains the old information in its ‘cache’.
What is the cache?
Your browser has a folder in which some items that you have downloaded are stored for future use. When visiting a webpage your browser checks if a copy of the files on the page is in its cache already. If so, it will mean webpages load faster. Some browsers refer to it’s cache as Temporary Internet Files
Sometimes a ‘force refresh’ works – shift+ctrl+F5 is common. If not, you can find more detailed info here: http://www.refreshyourcache.com/en/home/
Use a different machine or identity
One way to see if it is a ‘cache’ problem is to try logging in to the website on another machine or as incognito/in-private.
If none of this works, use the ‘contact’ form.
If you find another, or a simpler solution, also let us know and we will update this advice.