Auto input webpage form

I've been trying to write a script which will automatically reset a users email from a 3rd party, I'm modifying code I wrote which relates to this however I'm having a confusing issue which after investigating seems to be related to the support of IE.

The code i'm using:

$Email= "myname"
$url = "URL"
$ie = New-Object -com internetexplorer.application
$ie.visible = $true

while($ie.Busy) { Start-Sleep -Milliseconds 1000 }

(($ie.Document.IHTMLDocument3_getElementsByTagName("Input")) |select -first 1).value = $username

I was originally using

$emailF = $ie.document.getElementByID('email')
$EmailF.value = "$Email"

However, this resulted in:

Exception from HRESULT: 0x800A01B6

However investigating this here, the fix is to change to $ie.Document.IHTMLDocument3_getElementsByTagName("Input") however now I'm getting the error

Exception setting "value": "The property 'value' cannot be found on this object. Verify that the property exists and can be set."

Thank you in advance