First, I am quoting the OP images in order for them to be seen without going off site. Second, I thought Fixedfloat had a no KYC policy therefore what happened is a complete surprise.

Not only did they freeze your transactions they went a step further and asked you for (what they cite as) evidence that the conversation between you and your client actually took place and this is absolutely unacceptable conduct on their part. I have never heard of a situation such as that before.

I have no intention of either using their services or recommending them. They literally destroyed their reputation with their own hands over something that was not even necessary.