Superbalist - Shocking Customer Service

I purchased a G-Star Raw jeans on the 24th Aug-21 order no. ***5 delivered on the 26 Aug-21. Upon opening the box on the 27th Aug-21, I discovered that Superbalist had couriered the incorrect size being W34L34, when my order was for a W36L32. I logged in an exchange request on the 27th Aug-21, but heard from Superbalist on the afternoon of the 28th Aug-21. It must be noted from logging in the exchange I received no written correspondence via. Email or SMS. When I utilised the app to process the exchange, I wanted to arrange a simultaneous drop off and pick up of the correct product at the WC Brackenfell pickup point, however when process the exchange via. the app, the App allowed the drop off at WC Brackenfell point, but would not allow the pick up at the WC Brackenfell point. I could only process the exchange via. the App if I chose courier drop off. I received the refund approval on the afternoon of the 29th Aug-21, dropped of the item on the morning of the 30th Aug-21. I received an exchange note on the afternoon of the 31st Aug-21, confirming the exchange and particulars of the item being delivered. Upon confirmation I notice that Superbalist is couriering the incorrect size again. Tired of emailing Superbalist, as a final attempt I decide to contact superbalist via. Their contact centre ***. It took me 12 minutes to get hold of a an agent, only to be informed that there’s nothing they can do, I must receive the item and process an exchange yet again. The costs to courier an item 4 times to the consumer, the inefficiency and inconvenience on the part of the customer, I consider this customer service totally shocking on the part of Superbalist. I might be one customer today and it will eventually compound to a staggering amount, to the detriment of Superbalist.