My order ID is ****************Once I paid for the order, seller is not responding prop...

My order ID is ****************Once I paid for the order, seller is not responding properly. First, they denied shipping due to unknown reason. When I contacted the chat service, they initiated the dispatch after ** hours. **Now the delivery status was to be dispatched by December *st. However, after * days, seller messages me that they can't ship it due to shipment limitation. I don't know what kind of reason is this. **If they can't ship it, why AliExpress has assigned them a job to ship the product? Why would you advertise a product on big E Commerce platform when you're unable to ship it?**I don't know how much more I have to wait and face such inconvenient way to get it delivered. I never asked for refund but they are forcing me to cancel my order and get refund. I want a product shipped to me.