I'm unable to log in on my mobile device as the bill info has change and im unable to make a payment. I've changed from apple to Samsung. subscription isn't showing on my appstore.?

I've got you covered, john256.

When you subscribe through the mobile app, you're billed with the account you use for your device's app store. That means your billing is handled by Apple's App Store or Google Play, not directly through QuickBooks Self-Employed (QBSE). 

The email addresses you use for billing and to sign in to QuickBooks may be different. Additionally, you can reset your password for QBSE by following these steps:

1. Go to the QuickBooks Self-Employed sign-in page.
2. Select the I forgot my User ID or Password link.
3. Follow on-screen steps to recover sign-in info.
    

If you used your email address or user ID to verify your account, you'll get an email with a password reset link.

To proceed with the password reset or user ID recovery, you need to have access to the email you used when you signed up for QuickBooks Self-Employed. If you no longer have access, send us an email change request.

Once you have the new password, you can start updating the billing information using this link: Cancel, pause, or change a subscription on Google Play.

You can also browse this link for additional information: I'm getting billed for more than one QuickBooks Self-Employed subscription through iTunes.

Stay in touch with me if there's anything else you need. I'm always right here to help manage your subscription.