Russells not paying my money back

Hello My name is Marissa Naraindas. I have app**** for a TV on account at your Newcastle branch with the approval on the 5th of October 2019 they promised to deliver on the 8th October 2019. On the 8th there was no delivery and I had a friend at my place waiting for the TV...also on the 8th I got a call from the delivery and was promised the tv on the 10th. On the 10th I had my friend take off to wait for the delivery but nothing came I called the Newcastle branch and they promised delivery on the 11th. On the 11th my friend took off again to wait for the delivery but no TV came when I called the shop I was told that it would be delivered but nothing came. On the 12th I was highly disappointed as my kids were very sad that there was nothing and I decided to cancel the deal. On the 12th October I went into the Newcastle branch to cancel and they assured me there is no paperwork to be signed and the deal will be cancelled I would receive my refund of the deposit and administration fees in 3 working days... This is over two months that I'm waiting for my refund and nothing was received. I tried numerous times to call the Newcastle branch as I am working over time and can not go to the branch but no answer. They contacted me twice to send my bank statements and I have but still nothing. I called head office and they promised to call me back and they haven't. I'm so disgusted with the service delivery in Russells. I feel like I have been ****** and calling up and down it's a nightmare! I don't know what else to do but take legal action against Russells for taking my money and wasting my time. Christmas is soon and my kids are so disappointed. I'm a single mum I need my money.