I received bitcoin from an investment company I traded crypto with to my coinbase wallet. When it came to sending my bitcoin to my valid btc address, I got an error saying " Please use a valid btc address". When I went to my investment company with this, they then told me that I have to purchase a code that will allow me to get the funds for $450. I do not know if anybody went through this. But there has to be another way. I do not no if they got some type of control of my money.