Ghost Alarms

I have recently bought a new iPhone. The alarms I set on my old phone are going off on my new phone though they do not show up in my alarms on my new phone. I have deleted the alarms on my old phone. Removed my old phone from my account. I have deleted all alarms on my new phone and rebooted the phone - no joy. I got Siri to remove all my alarms and rebooted and still no joy. I now have 6am and 6.30am alarms going off when I am on annual leave as well as a couple of alarms that I had set up on my old phone to remind me of tv shows which have long finished. I have again deleted all my alarms and rebooted and not set up any alarms and again this evening my alarm went off to remind me of a tv show which ended last year. All very frustrating... Any suggestions?