ACCOUNT CLOSURE FROM OABROAD

I am now living abroad , and have decided to stay here permanently and will no longer need the use of the account I hold with standard bank,

1st of all I have been trying for months and months to cancel a funeral plan I realized was still debiting my account I called in to try and get it cancelled , I was referred to standard bank insurance this is after a $150.00 cellphone bill due to international calling, I then email transact banking to try and get this resolved ,but get a response that I need to send some verification details of which I did and still did not hear a response, I then send another email this time I get a response from Selloane Mabaso from the voicebank also requesting verification details once again I do that and still weeks later no response , I then send another email this time around a person by the name Michael Van Der Walt from voice branch ask me to verify personal details , yet again I do that , and weeks later still no response, I then make another expensive call into the call center only to be told sorry sir the system says your verification is unsuccessful , but what I will do is email Selloane Mabaso and ask him to do a follow up days later still no follow up, as stated months prior to my account going to a 0.00 balance that I need these services terminated and yet to date nothing has been done and now you standard bank is now deducting fees off a revolving loan that was paid up and paid extra to that, today that revolving is being debited after countless times asking you to cancel and close my account , I am unable to go into a branch because I'm in north America, today I get an email after sending an InMail from the banking app , that I need to accounts are only closed at branches but you can send your card cut up and a certified copy of ID , my question is who is going to pay for the international mail from abroad , when all I ask is that my account be closed how hard can that request be, I have mailed prestige banking I have mailed complaints and still no one is able to help in having these account closed , do I now send this request directly to SIM CHABALALA and his team or is some going to help all I ask is my account be closed with immediate notice , PLEASE BE ADVISED THAT I NOW USE AN INTERNATIONAL NUMBER AND MY SOUTH AFRICAN NUMBER IS ON ROAMING BUT NOT FOR CALLS