Commentary
As I side note on your design of osTicket vs your website I agree with Ntozier on the colour choices but have a few further suggestions.
Personally I don't have a problem with a website having different interface designs for different services to start with, but due to the nature of your business I would actually recommend making the support system as close to your website as possible.
I would also recommend commenting the following line from the footer
As a show of support, we ask that you leave powered by osTicket link to help spread the word. Thank you! -->
by replacing it with
As a show of support, we ask that you leave powered by osTicket link to help spread the word. Thank you!
BEFORE READING FURTHER PLEASE NOTE: the information and advice below is not personal, just constructive information to try and help you, please don't take any offence to it as I don't know what you know so I have provided a full basic explanation.
Another thing for you to think about is initially I way was only available to be found via Facebook or a directory site, I was looking through Google but had no luck at first. Then when I decided to go to Facebook and clicked on your link, I noticed when the website loaded your domain name is actually rejuvenate.it, not rejuvenate-group.co.uk as displayed on Facebook.
The problem with this is to do with the way search engines deal with geographical locations, the site may be served in the UK however with a .it domain it confuses Google being an Italian domain.
Why is this? Well many websites are geographically targeted, for example centralpulse.com is targeted generally to international customers but centralpulse.com.au is targeted solely to Australian customers, but both sites are served in the US. Not the best examples right now because the new website owners are messing around with the websites and trying "new things" on a live site rather then a development site. Google knows that servers can be located anywhere in the world for any domain so it places less importance on the geographic server location and more to the domain name.
So what is this resulting in? Your website considered less relevant in the search results because Google thinks you may be in Italy, I would suggest registering rejuvenateit.co.uk if available and adding it as a CNAME record pointing to the same website. I assume that you may have redirection set up by either META or DNS rather than the domain terminating on the IP, this will also make indexing harder for search engines.
Please note: when I changed the search query slightly just now it found you easily. By putting "rejuvenate it" you came up trumps, when putting "rejuvenate uk" there isn't even a mention. Why did I not put "rejuvenate uk" first? Because I knew by your support ticket domain you're in the UK and your branding is "Rejuvenate - Bournemouth’s friendliest IT company", not "Rejuvenate IT - Bournemouth’s friendliest IT company"