Incomplete funds refunded

I returned a Vizia WiFi Ups order ***7 and it was replaced with another similar one order ***5. I paid R1349 for the UPS but was only refunded R1119. When I checked my account R230 was put in my wallet as a credit. I don't understand why you guys chose to split my refund into a refund to credit card and a credit in my wallet. I logged a call and Carmen responded to my issue. She said a refund was requested for the balance of R230 and it would appear in my credit account in 3 to 5 working days, which meant the 2nd or 3rd of June. It's the 4th and still no refund for the R230. How much longer should I wait for the refund which you guys decided to split into two payments?