I filed my taxes in January and still haven’t received my refund . My bank information is incorrect an I need to change it

If you entered incorrect information and your tax return has been accepted by the IRS you won't be able to change it.The IRS will mail you a paper check. 

Here is more information:

https://ttlc.intuit.com/replies/3302459

Also you can track your refund with the IRS here: https://www.irs.gov/refunds