Just like how you will not be able to provide any proof of whether you actually had a baby or not, similarly, you won't be able to provide any proof of whether you made any "sale" at all. That too of a "premium" trade signal service that's supposed to be so accurate that it compels people to buy - if that were the case why do you need to sell "signals"?
Let me tell you why, because you never had a product. You buy cheap coins, then create a "signal" to buy, and then you trap your "customers" by telling them to buy while you alone cash out. That's the truth with most signal services and I am sure your's is no better.