For removing an Instagram account that you’ve added before, first you can log out of the account:
Then go to your profile and switch to the account you’d like to remove.
You can tap the gear or settings icon in the top right.
Then scroll down and tap Log out of [username] or Log out of All Accounts. Through logging out of all accounts, you will remove all the accounts you’ve added.
What if your removed Instagram account is still showing!
In case you’re still having problems, here are a few more tips:
You can log out of both accounts.
Then you can go back to the home page where you log in. The extra account will still be showing up.
The name is going to appear on the left and on the right it will say log in for both.
Then you can hold down on the page and next to the login tab an X will appear. After that, hit the X.
It will ask you that you will need all the info to log in again and ask if you’re certain.
Then hit accept.
Here’s another method;
In case the X is not active next to the account you want to remove.
In this case, you have to remove Instagram from Phone by holding down the icon and tapping the little x in the corner. Then you can re-download the application from the Store. Later, log into your main account with your username and password. Then go into settings and then to Add Account and add your second account again.
In case ou can’t add new accounts to Instagram
It may be quite possible that you have already exceeded the number of new accounts you can create on a single device. If this is the case, there are many other methods. If it is the only device you have access to, then you can go ahead and google Instagram.com and create an account on the official website. In case you have another device, you can create an account there (on the app) as well, as long as you have not created too many on that device. Also, it is possible that you also may be logged onto too many accounts at once. You can try logging off a few, deleting the app, redownloading it, and trying again.
Only one account can be created through an email, and five accounts through one mobile. That may be one of the reasons other than the mentioned earlier.
Also, you can use the account creator to bulk create accounts, such as Instagram account, Gmail account, YouTube account, Twitter account, Amazon account… It certainly allows to create and resume multi-accounts creating tasks at the same time. Every task does have full stats of account creating, you can manage and check everything easily.