Refund long overdue!!

I have a refund due to me from Makro online. The goods were returned on 25 January 2018 and I was told that the refund will reflect in my account within 7 working days. After 7 days I emailed the customer care email and I was again promised a refund within 7 days of an amount of R270 which is also the incorrect amount - according to the slips I have I am owed R366.65....8 days since the promise from customer care to refund me and still no refund. Extremely disappointed - the online service is supposed to make life easier .... But here I am constantly chasing up money that is rightfully owed to me! Get your act together - You've lost me as a customer!