Terrible customer service: Incorrect item delivered and 3 weeks later i haven't received the correct item

I bought a table from Makro online on 26 February 2025. An incorrect item (a trolley) was delivered on 3 March 2025. I logged a return immediately and received an email that i will be contacted between 2-4 days for this, it is today 19 March 2025, i still have not been contacted and the incorrect item has not been collected. I have phoned several times but still this is not sorted, I want my refund NOW so i can go purchase a table somewhere else.