secure website facility lost

'The importance of securing your web site' rightly says how important this is. I totally rebuilt my web site using your latest Web Site Builder on the web. I was promised it would provide a secure web site. At first it did. Now using the https prefix does not work. I looked at how to secure my web site and it says "For SITEBUILDER PLUS ONLY. Do not use if you have Website Builder." So I can't do that. I am blocked. The Bing version of search console does not support http, only https so I cant even submit my web site to it so it is unlikely to find it. Google knocks ranking points off for not being https. You promised this would work, I have put many many long hours into recreating my web site and it is considered inferior by Google and is invisible to Bing. If you want to keep your customers you should stop removing vital facilities or you will lose us all eventually.

The Bing search console says it usually ignores sitemaps with all the last modified dates all set the same. As far as I can see, your software only build sitemaps with them all the same. Can I post edit the sitemap so Bing does not ignore it?