Just in case if you still can’t verify your site on Pinterest using all those given steps/procedure on the net, I want you to give this simple steps a try. This is just copy and pasting of Pinterest Meta Tag and as easy as 1-2-3.
YES!! This link is the only one I’ve found that gives step by step instructions and actually shows you where each step is located. If you don’t know much about PHP, like I don’t, this one finally did the trick.