Resurrecting a closed contract.

So I had a contract with rain until I upgraded to fibre right. A year ago.

2 months ago rain used my card details to collected fees on this closed contract. I don't even have a modem. I went to Nedbank the transaction was reversed on a *****ulent clause. I had replaced my card.

1 month ago rain contacted me to arrange to collect funds. I explained to them what happened and I did. They where not able to provide a written contract binding me to them.

today they contact me again. threatening me with legal fees.