Edgars accounts are a mess

Since Rcs has taken over Edgars credit I was suddenly charged interest fee. I decided to close my account. I have paid up my account 3 months ago, called to request to close it, was told to send an email, did so. I still receive invoices for 'admin fees', admin that they obviously not doing cause my account hasn't been closed. I'm ignoring them. They must do their admin, backtrack my email date to their invoices and sort out their own neglegance. They have definitely lost me as a client. Paying admin fees on a zero account is ****************.