2 accounts created unknowingly Missing Mov files and now the Account has merged to just 1

Okay after my first post about missing movie Files with just Thumbnails showing I got some great advice from the community (michaelbparis, JohnTSmith, Kglad (thank you). There suggestions led me to find what may be an answer to my missing folders and also a discovery of me being charged twice a month so close together to where I didn't noticed I was being charged twice. This occurred for about 9 months until just recently they seemed to have merged to 1 without me noticing at all. I found out through my payment history. Now the question is are my files still in the old account and how do I access that account? also how do I get refunded for the months that I payed twice?  How do I go about reverting the old account and keeping it if it has the old Files that im looking for? Point me to customer Service please if that's the answer or is there away I can go about doing these things myself? Thank you all greatly for you help