Poor service delivery

Hey Good day My name is Zanele Mthethandaba I have ordered a hand bag at superblist on the 19th of August 2017 then they promised that they will deliver it on the 23 August 2017.After that at the morning on the 23 they called saying I should go and make the eft payment cause the third party does not do cash on hand delivery.So they sent me their banking details and I paid the money and sent the proof of payment several times.After that they promised to deliver the bag, then I waited for 3 days then I called them again asking about my delivery then they said I should send the proof of payment again they did not receive So I told them am no longer interested cause they keep on telling stories and it's been 3 weeks now I want my refund then the are not responding I even sent my banking details.