Returned logged on 06 December but still awaiting refund

I have made numerous phone calls and sent emails to Spree to follow-up on my refund and sadly no one had bothered to respond to any of my emails. I logged a return on 06 Dec and someone called me on that week that they were collecting the parcel. I told him where to collect the parcel at work as all deliveries and collections are done through our Mail Room. A week later I followed up with our Mail Room only yo be informed that the parcel was still there. I called Spree and was put on hold for +20mns as the consultant needed to confirm a new pick up time. The day came and went and no one came. I sent emails to no response. I ended up calling the guy who initially came yo fetch my parcel and arranged with him and finally he collected it on 20 Dec. My item only passed the security check on the 27th. I sent numerous emails enquiring about my refund and not a single person from Spree bothered to respond to my emails and neither did I receive a call. This morning I called and spoke to a guy who told me that they have a very long queue of pending refunds. He did not take responsibility at all, No apology was given instead he keep quiet and I ultimately dropped the line. I tried again to call but once again no one speak from the other end. All these calls were made from my cell phone which makes me even more angry as it's an unnecessary expense. I do NOT want a store credit as I am Not interested in buying from Spree in the future. I have been a customer for years and thus is how I am treated when I book a return. I trust that this will be resolved asap