Welcome back to the community and thanks for taking the time to post.
I'm sorry to hear of your experience speaking to the team and the offers that you were advised of, an O2 sim card is part of some of our Volt deals but you don't have to take that as there are also offers that dont include an O2 sim.
Unfortunately, we are unable to action any package changes or create any new deals over the forums.
Please could you call into the team on 150 from a Virgin line or 0345 454 1111 from any other line and they will be happy to look into this further for you. Alternatively, you can message us on WhatsApp using 0730 532 7112. Please be aware that replies aren't instant from this service but the agents will reply as quickly as they possibly can.