Service and My refund

I have ordered a ROYAL CHRISTMAS TREE 150CM and BAUBLE GOLD BEADED 8CM online on the 10 December. I did a follow up to check my delivery and they delivered the CHRISTMAS TREE 81CM on the 22 December. I sent the delivery back with the delivery guy because the size was not the same. I've sent them an email and called cancelling my order on the 22 December cause I've waited for too long and received the wrong thing. The BAUBLE GOLD BEADED 8CM was cancelled because it was out of stock and they promised to give me my refund for everything. Its the 13 of January I am still waiting for my refund. I am not receiving any update from them. I am so disappointed with their service. According to them the refund can take up to 10 days. unfortunately for me its been 22 days now waiting. I have emailed my Bank notification to them hoping they will process my refund fast.