Hi Kimi1990,
A warm welcome and thanks for posting on our community forums. Sorry to hear that your 2nd sim card is still not picking up any network signal on your mobile phone.
Can we ask if you have tried the Virgin sim card in any other mobile handset? What handset are you using, and was this provided by Virgin Mobile?
Have you ever been able to use the sim card before changing to the oomph package?
Unfortumately, we no longer have Virgin Mobile stores, so everything is online or over the phone. We have included a link here https://www.virginmedia.com/help/mobile for further help and support.
Please let me know of the above so we can assist you further.
Kind regards Jodi.