Bad Customer Services and NO REFUND

I have ordered a book on 21 August 2019, I have not received the book. I had to phone them constantly, sending emails, trying to follow up on the tracking of the book. On 21 November I requested a refund, and I am still waiting. The excuses are absolutely ridiculous, why they cannot make a refund. Today after phoning and sending and email to follow up on the refund, I was told that I will have to wait until sometime January 2020 , How can a company be so far behind that they cannot make a refund. My advice is, do not buy anything from them, The customer services is terrible to say the least, and I think this company is in financial trouble. Maybe they can proof my wrong to give me a refund as it should be.