Sbux Purchase non delivery and No refund

I purchased a Laptop with Sbux as NSFAS funded student, this was on the 11th of February 2019 and the transaction was done for an amount of R4 794.00, later I was told that my voucher is invalid and I need to resend a new one, whenI I check my sbux funds it was already deducted and I advised them that it has been deducted already. I asked when will it be delivered and they said before end of the week, meaning before friday 15th, However Tshidi(customer support) said shethey will check with their finance department if it is reflecting, later she said they will need to refund me, so that I may resend a new voucher, however the next day(12th February) Customers support agent told me that I need to wait for the refund first so that we may start transaction again, I then waited and see nothing.

I emailed again to ask when will it be refunded, she said she doesn't know we only have to wait, on Friday the 15th I sent an email, asking the specific date of refund, the response was still not satisfaction as I was told to keep on waiting, I called and request for senior, I was told that they went to the meeting, I requested a callback whenever they are back. But I got nothing.

Today, the 18th, I still did not receive a refund neither a laptop. I did send many emails advising how this has affected my studies, but I get no response. Now I feel like I'm being ****med because there's no turn around time for their refund, neither delivery for laptop.

I asked whom are they refunding/which account but I still got non response.

Their service sucks. I send many emails without and proper response/solution for that matter.