Just bought a practice that already has Posture Pro. How do I get an unlock code?

According to the license agreement accepted by the previous owner of the clinic, our software cannot be sold, transferred, rented, leased or given to another party without our consent. Our software is not an asset of the office and cannot be treated as such. We charge a transfer fee when switching customers. This is because we don’t charge for support or training. We estimate a new customer costs us $500 in training and support fees and that is what we charge to transfer the license from one customer to another.