Have not received my order

Order was purchased on 10 November 2017 with delivery said to be on 20-24 November 2017. The item did not arrive. Merkado answered my first email stating that there is a delay in receiving my item purchased. They have not answered any of my other emails. When calling, they did not answer but surprisingly called me back. I was informed that my order was delivered on 17 November 2017. When I told the person on the phone that the item was not delivered and I received an email on 27 November 2017 to say that the delivery of my order will be delayed, she could not answer and said she will call me back in 10 minutes. Needless to say, I am still waiting for the call back. While speaking to her on the phone, I received another email from Merkado stating again that my delivery has been delayed ... yet she was telling me that it was delivered?? I tried calling them today, the one number is not in service, the other goes straight to voicemail and the third number rings once and goes to voicemail. Not right to be *****ing people's money!