Delayed in Feedback and Poor Customer Service

I purchased an item in October. Logged the return, took a month to be collected. And it was only collected after numerous calls to the Spree Call Centre. Messages on FB, Twitter, Instagram all went unanswered. After one too many calls and times on hold, I was told that the money would be refunded into my account. This was on the 30th December 2017. To date, I'm still waiting for my money to be refunded. Messages on FB are constantly ignored. I have to send messages daily in order to get a response. At that, the response is unsatisfactory. I just want my money back. Please give me my money back.