Worried about my transactions

Im worried about Yoco after reading the reviews here im concerned that they could interfere wit my business. They have blocked my account because the think 1 of the transactions is suspicious. I have provided them with the invoice however the agent tells me ALL my transactions in my account are blocked. I am concerned that not only will this affect my delivery time and execution of the product but it will be a long dragged out issue like the other merchants complaining.