How to delete Account



I have three different accounts on forums, support and cloud. I want to delete my forums account. But there is no option to delete in settings. I want to consolidate all three. Realm should provide single sign-on experience on their platform. Realm should also allow to delete the Accounts created. I even don’t find any option to delete cloud account. Further I am unable to change my e-mail Id on support website. Really I am embarrassed.