Blind date platform makes you deposit but refuses to let you withdraw

My mother purchased more than 1 million principal on the foreign exchange platform and earned more than 1 million, totaling more than 2.2 million. She applied for withdrawal, but the customer service kept asking her to recharge VIP with 300,000. We could do nothing but borrowed money to recharge, but they still refused to let us withdraw but asked us to pay taxes, more than 160,000 . We have been fooled by various reasons, and paid a wide range of objects. I guessed that all the card numbers were bought. Now all the cash we own is stuck on the platform and cannot be withdrawn.