Appalling Customer Service

I have never been able to use my cheque card for online purchases since I got the card last year Sept 2017. I have called in several times and no one is able to assist. I get a declined for all online transactions. On Friday 18/05/2018 I called in and spoke to Dimitri Snyders and I sent through a screenshot of the errors received. I spoke to his team leader Mr Buthelezi. Mr Buthelezi called me yesterday 22/05/2018 to ask me several questions and say that this is being escalated and he will get back to me but nothing has been done. I have receive dno feedback and I am still waiting for a resolution. Talk about terrible service and no service delivery!!!!