Extremely bad on-line shopping service and returns service are pathetic!!!!

Bought POE switch from on-line store. Product delivered was non-POE model on 16th of February 2019. Return was logged on-line on the 20th of February 2019. No response from Makro until I phoned the 27th of February (Call reference number 45552). With consultation via telephone on the 6 March 2019, Makro blamed their supplier and indicated that the right model will only be available in 6 to 8 weeks. Product was collected for a return on 6 March 2019 and still await return of funds. Communication to Makro indicated that payment was done on the 15th of March and I need to wait 7 days to clear in the bank. Have communicated with representative of Makro again on the 28th of March via email and response not received yet. This is close to *****ING, FALSE ADVERTISING & *****!!! How long must I wait to get my money for a product that was sent incorrectly and advertised as available. With my experience I can only know that I am not the only one going through this at the moment.