Volt / O2 Sim Query

Hi all, I managed to sort out my package renewal query and appears we have lost a few big benefits as my Wife had an O2 sim but has since switched over to Tesco. So we've lost the Volt Benefits meaning I've a much reduced package for the same monthly cost.

The account is in my wife's name, and I'm currently on a monthly Vodaphone contract which is due to end in July. If I get my PAC and take out an 02 sim online, via Uswitch etc as the costs are much better, can I take advantage of the Volt boosts that come with it, or does it have to be in my wife's name? Does same address count towards claiming the benefits?

Thanks in advance for any advice.