HORRIBLE SUPERBALIST

I recently purchased swimwear from Superbalist and wanted to return the one item as it did not fit , the process of returning an item is as follows : log a new return , enter the product code , select item then choose between exchange or refund i then chose refund thereafter you confirm your collection details - the courier collected the Tatum cheeky strappy bottom a few days after i logged my return case - Superbalist will then inspect the item and if it is in the original packaging, which must be undamaged and in its original condition with all seals still intact (if applicable) they will then refund you , in my case my refund was rejected for valid reasons below which i understand.

Item status: REJECTED Reason This product was sold on a special sale/markdown/promotion and is therefore a final sale item. It cannot be exchanged or returned.

I then contacted the company and enquired when they will return my item since it has been rejected and was advised that they will follow up with the courier company , today i called again to follow up and was advised that they are not liable for my item if it is lost and their courier never collected my item as there is no "waybill" on their system - so what this lady was trying to tell me indirectly is that i am crazy and i imagined their courier came to collect this item from our offices - WHY must we complete collection details if the items supposedly don't get collected for refund or exchange?