Nimble duplicate account

I just saw a Nimble account with a Balance of R3190 on my credit report. As i do not have any credit agreements with them i called and they claimed the account is from Wonga. Though i only have 1 account with Wonga which is still active on my report with a balance of R2966. Nimble claims its the same account. I contacted Wonga but they tell me the account is with VVM. Which they also claim a different account