Thank you for coming back to us about your ongoing O2 SIM card and package issue. Is this a Volt package you've taken out? If so, you would have been registered to take out an O2 SIM and signed up to an O2 account at the same time. As we're merging with O2, this means that you'd have to pay for the SIM card to O2 directly. I do apologise if this had not been explained to you when taking out the package.
Have you tried to sign into your O2 account with your email and then tried to reset your password?
You are more than welcome to cancel your O2 SIM card, however, as this is a part of your current package, this will impact your Virgin Media package with us. You can cancel your O2 SIM by calling O2 directly on 0344 809 0202, or to discuss your Virgin Media package, you can call us on 150/ 03454541111 as we're limited when it comes to making package changes.
Please let us know how you get on. We're here to help further if needed.