withdrawal request

i invested my money to this company, the amount of deposit is $21,000, this is my principal to deposit to this company, Capital Gold Asset, in jun 2023, but the money locked in company which said it is system failure, but in Oct, they gave me a metamsk address, send me some amount of money, it is not actived, said that if i pay the fee which can activate my wallet in Metamask, it must be phishing. so i want to pay back olny my pricipal. not more, please help me,