dispute - hoaxing account on credit report

[cliffiss]

this is the first time I have this headache problem. need you help.

my recent credit report showed there is an account under my name charge-off. this account was set up by a DVD rent company using my name and my 5-yr-ago address, then sent to a collection company, then to credit report agency.

I have no knowledge how this account is set up. and I disputed with CRA online then they reply me 2 days later and said this account is accurate. I doubt they didn't investigate to the providers.

I called to the collection company, reporting to CRA. it told me this account is setup one and half yr ago to order DVD movie.

my qustions are: this is definitely a hoaxing account to remove
1. how can I ask CRA to do investigation? what document I should provide to CRA? do they verify it only relying on my name and past address?
2. do I go to court? there is no address of this original company

thanks