Fraudulent cash grabing website.
Review about MatureDatingUK.comThe website is designed to entice you to pay money to chat with other paying members and for an extra load of money you can then have non paying members be able to contact you. Never met one that had paid for that service.
Basically if you join then you become the advertiser enticing newly joined people to pay the website to see your messages. So you waste your time and money contacting people who can not get back to you unless they pay to view your messages.
You might be able to sneek a message through the titles in the free icebreaker mail feature. My favorite message title was "Dont pay this website" perhaps "Dont use this website" would be more informative.
Pros
Easy to use
Cons
You pay to waste your time trying to chat to people who can not get back to you.