Spree won't honour my discount voucher

I am really upset that I received a voucher from Vodacom valued at R100 off my next purchase at Spree, but Spree refuses to honour it.

I chose an item of clothing and loaded the voucher (2SUMMER100) for order # ********** 89 on 23 December 2017. At check out decided to go for a top instead and abandoned the transaction. I did not enter my banking details.

When I tried to buy the top, I tried to use the voucher but it wouldn't allow me to. I then logged a query with their customer service on 24 December 2017 (***). Then received no response so logged another query on 27 December 2017 (***). Then logged another query on 02 January 2018 as I still received no response (***).

I really wanted this top and was worried that it would be snapped up so I called the customer service number on the automated mails sent to me. I spoke to Shafiekah and she basically told me that they were battling to work through the volume of queries received and that they should resolve my issue shortly and provide me with a new voucher once they have checked out everything as she could see that I didn't actually redeem the voucher and didn't complete the purchase, even though the system reflected that the transaction was cancelled and that the voucher was loaded to this transaction.

So I think that I really want this top and that I will just buy it and on 09 January 2018 I see that my size is now sold out. So I log another query on 09 January 2018 (***) cause now its about the principle. I didn't use the voucher, but cannot understand why this is taking so long.

So I call Spree today (10 January 2018) and complain about how long its been and query when this could be resolved. The service agent tells me that he has no knowledge of the promotion and puts me on hold for quite a long time. Then he returns to take my details and tell me that he will query this with their Marketing Department which will be back tomorrow.

He says that he sees that I used the voucher and that the transaction was cancelled. I say yes, but I never completed the transaction but abandoned it and went on shopping. He asked me if I went to checkout and I says yes that I went to my cart but I never completed the transaction. Then he tells me but the voucher was used. I tell him I entered it but I never used it as I didn't complete the purchase. He then tells me that I have used the voucher and it isn't their fault that I cancelled the transaction, is it?

I was totally flabbergasted and told him that they are NOT the only online retailer I can use and it makes no sense that I am penalised for a transaction that I NEVER COMPLETED.

I am tired of the bad service and negative attitude from this retailer. This is not the first lapse in service but at least the last time, someone took the time to resolve the problem instead of blame me for it.