I have an developer account and I want to delete it. How do I do that?

I Wonder if someone review my feedback about: 1- the last person I spoke with (I think his name is Ronnizann) He was not supportive at all. 2- Seems was outside because the wind sound was so high, I have to ask hem to be in clear area 3- I received a call before Ronnizan from a lady (Not sure a bout her name) she close the line just after I said my name during the introduction, and she did not call back 4- I replied with screen shots and no call and no reply received