K11-mall — My money should be refund

I received a message on my phone telling me to join an online business and I was told to click to join a Whatsapp group which I did.The lady I chatted with said her name is Ana, and she told me to register on k11- mall.net which I did, then she told me to pay 1000 into one Abdullahi sani acct after the money reflected on the account she told me to open a telegram acct and continue the conversation with another lady, she told me to make an order and I did the first, she told me to make another other but the money in app acct is not enough, she told me to transfer more money into the app act, I now told her that she ought to have told me before I started it but she said I have to complete the task before I can withdraw my money so I paid another 3000, followed by another 15000 after paying all those amt, the app still bring another 70000 order for me to pay before I can withdraw my money but I told her I don't have money again.now I want to withdraw my money but I still can't do that, pls help me beg them to provide my 20000 because have paid 1000 which did not reflect on the app at first