Adobe Randomly Ended My Subscription

So today while checking my email I saw one stating my subscription had been sucsessfully cancled. This struck me as odd since I never sent a request, when I checked with support they said it was due to a duplicate purchase. The thing is, not only did I not purchase a subscription ( I used codes I got from Geforce Experince on my desktop) I never recived an email warning me about the possible dupiclate "purchase". Is there anyway to get those remaining months back?