Online at Liepies are *******!!!!

After numerous attempts, I have yet again failed to get any response out of this online shop. They do not provide any address for me to go and visit. And no one wants to give a landline or cell nr for me to get hold of them. I placed a very big order with them in March 2021, I paid for it and it is the end of October 2021 and I am still waiting for my parcel. This is theft. And I would like to know what I can do next?