Banking while Abroad is a Nightmare with Nedbank

I have been living overseas for more than a year and I've not had access to my Nedbank App. I have tried sorting this out but I'm just not interested anymore. I have also closed all my other bank accounts in SA. Can you please tell me if there is an alternative way to pay for my credit card? I just want to pay off the credit but I haven't used it in more than year. Please tell me the available alternatives.