webbyctrl

Question, my web host reseller provider Just Host insisted on getting a Dedicated IP in order to install an SSL on my website to work with WHMCS. Is this a necessary upgrade? I have purchased a SSL and it is ready to impliment, however when I placed the https://www.webbyctrl.net/billing on WHMCS General Settings area - it does not work. I am looking to validate or get any alternative choices (if any) to installing the SSL on my website http://www.webbyctrl.net Thank you in advance. WebbyCtrl