Grabmall - Online grabmall website fraud

I was contacted saying it's a part-time job of completing orders and getting commission. Started out saying pay *** and you will get *** which I can withdraw back and it happened. Later, I was asked to pay *** to get back ***rs just like last time. Since I could withdraw my money the first time,I paid *** again n completed the order, again I was tempted to add *** more to existing ***rs to make it ****rs and to complete another * orders. I thought I will do this for last time and leave but those in ****rs I could complete only * orders and for *rd order I had to add the difference amount and complete, paid *** extra and completed, by the time I complete * order of ****(* orders inside) I was seeing * more unfinished orders on my dashboard. When I asked about this, they acted surprised and started saying it is lucky order, if u complete it u ll get ***% commission. I said I don't want to continue and want to withdraw whatever I had untill then , but they didn't let me saying you can withdraw without completing the orders assigned. It was all their doing so that I don't withdraw. Without much option, I continued so that I get my money back at the end but after that for evry order I had to pay extra of ****,****rs so on. I stopped in the middle and asked them to refund because the next order they asked me to pay ****rs but they started saying you must complete evrything to get your money back which I am sure I won't get. So I stopped and they said my money got freezed because I hadnt completed order on time. Please help me get my money back. I have screenshots of them saying it was only * orders and added more. When I said I will complain about this, they deleted the conversation on telegram and started saying they are amazon tied people and stuff.