Can’t access email address on account

Hi, I was trying to link my virgin media account and create Virgin media O2 account, unfortunately it has an old email address registered to my virgin media account that I no longer have access to, step-son stupidly deleted it on Microsoft account and I lost it forever, thus when I try to use my new email it wants to send a email to my old email address first so I can change to the new email address, because of this it now  just sends me around in circles now and I can’t even sign in to just my virgin media account anymore as it send me to the screen below, I now have no access to anything, I do recieve emails from virgin media to my new email account but as for logging in I’m stuck, any way I can get access without having to get an email sent to my old email address