Give me my clearance letter

I app**** for Dept busters 5 years ago and for about 6 months things were going okay until I lost my job, I tried to cancel but they refused and offered to suspend their services which I was okay with it. I paid all my accounts and sent them paid up letters to get my clearance letter. To my surprise they said I should pay admin fee of R3500 but I was not aware that I'll have to pay this and they also never told me that I'd have to pay admin fee to get my clearance letter, what's more worse is that I asked if I'll have to pay anything but I was told I won't pay anything. At first I was assisted by Bianca, she was so friendly and offered good service even during the suspension I was being assisted by her. Even on the letters of suspension they sent me there's nowhere that state that I'll have to pay admin fee. It's been over 5 years struggling to pay my account as I can't even get a decent job with this flag on my name. This whole process of R3500 admin they said was introduced 3 months back but they never bothered to let me know that I'll have to pay this admin fee but I was in their system for over 5 years. Why is this process applying to already existing clients, this is an ******ion. To make things worse during my 6 months with them at the beginning they were debiting the amount as agreed but after the suspension all my accounts were still owing the same amount they were owing before I joined them, I never bothered them about it. This means I wasted over R6000 with them now they want another R3500. They can't give me that money again and they can't just issue me the clearance letter