Have changed url for the site to a more user friendly one, but the old one dominates the search engine and have not been deleted and cannot find the new one, sent the problem to wordpress and they informed the don’t respond to that request
It’s not a WordPress problem. It’s a search engine thing. When you change your URL, as far as search engines are concerned you have a brand new blog and it’s starting again from zero. If you wait, search engines will eventually raise the rank of your new URL and let the old one fall by the wayside. Expect it to take about four months.