Impossible to Close a Woolworths Credit Card

I emigrated in October 2014 and as a good citizen I closed all my accounts including my Woolworths Credit Card and Shop Card after paying them fully up. Woolworths managed to close my shop card but for some or other reason did not close my credit card, despite me being assured it was closed. In February 2015 I received an e-mail from an attorney stating that the account had been handed over due to non-payment. Woolworths did not attempt to contact me via e-mail (my e-mail has remained exactly the same and being the one they e-mailed my accounts to when this account was active and obviously my cellphones were no longer working) to verify what was going on before handing me over. I contacted the attorney who's staff proceeded to threaten me with legal action and who seemed to have no interest in resolving this issue. I again followed up with an e-mail to the attorney explaining the situation which was again ignored. Now being in SA on holiday I thought I would resolve the issue but no Woolworths says I must speak to the Attorney and vice versa. What now Woolworths I will not be paying this account! Such incompetence is sad sign of decay in your company!