Debit orders that were not authorised

Once again Virgin Active is now trying to take money out of my account for two memberships. Robyn Jonathon tried to call me after my first complaint. Then sent an email. I have been extremely busy and could not contact her. Today I sent her an email to date no response. I called the call centre spoke to Leeanne who advised me tht two memberships are active for my family on my vitality account. How is this possible and they constantly are trying to deduct the monies from my account. i was then being transferred to Corporate who then dropped the call before I could even speak to someone. I was advised that my husbands membership needed to be deactivated and mine activated. Right now I just want them to deactivate all memberships cos they have messed up my bank account so badly.