CANCELLED INSURANCE DELAYED REFUND! A WEEK LATER NO REFUND ALL REQUIRED DOCUMENT PROVIDED!

So frustrated with the service or rather lack of service from outsurance. I cancelled my car insurance mid Feb as I communicated to them that it was too expensive for me. my account was deducted and I called again and they told me it wasn't cancelled. they cancelled and promised a refund within 48 hours should I supply all the required documents. I did that a guy named Tshepo assisted me. that was on the 26th it is now the 31st March still waiting refund. I need the funds to cover my current insurance. I have to constantly follow up with a Ronica Abraham who is not very helpful!.