Pw Enterprises — pw enterprises a fraud company

Hi team, my name is kalyani and i am housewife. On 4th january i got a cal from pw enterprises that they provide work from home. After knew the complete work details i. E., i have to complete 1500 forms in 15 days for 30k salary.in that 30k they will deduct registration fee.in case if i am unable to complete that work i have to pay 4900/- to them. They send one agreement and signed with otp. On 5th jan i got user name & password and i started working then i got to know that this is a fraud company through reviews in online and stopped the work. On 22nd they trying to reach me through message, cal but i didn't respond. On 23rd dec they mailed me as mentioned as a legal notice to pay 4900 + 3600 as a legal chatges. I am really worrying that we are unemployed and we are trying to do some work and get some money. These companies are cheating innocent people by playing with their needs. Please help me out in this problem
My email id. [protected]@gmail.com.