activation key

I am a website admin who has inherited this site. It was built a long time ago. I am seeking tech support to covert pages from text back to visual. I don’t have the activation code. Can someone either tell me how to covert all of the html back to visual on the pages or how I can reach tech support? Thanks for your help.

You won’t get support without evidence of the purchase.

You also won’t be able to change text to visual unless it was originally created that way