You can dispose of your record for good by getting to Instagram through an internet browser.
You can't erase your record through the Instagram application.
Here is a basic bit by bit guide on the most proficient method to get it done...
· Sign in to Instagram.com.
· Click 'Help' on the right-hand side of the page, under the 'Ideas For You' list.
· Click 'Dealing with Your Account'.
· Click 'Erase Your Account'.
· Click 'How would I erase my Instagram account', trailed by the 'Erase Your Account' hyperlink that shows up under that.
· A drop-down menu will seem requesting that you select your justification for erasing your record.
· To proceed, reappear your secret phrase.
· Look down to the lower part of the page and snap 'for all time erase my record'.