Where does the gold and silver come from and what price do I pay?

Since 2008 we have a proud association with Swiss refiner Argor – Heraeus Ag. 

We have consciously and purposefully selected Argor – Heraeus Ag as our preferred choice in precious metal refining and Industry standards with our clean gold policy. 
http://argor.com/index.php/eng/RESPONSIBILITY/INDUSTRY-LEVEL 

We buy our precious metals direct from Argor – Heraeus Ag at refinery London Bullion Market BUY price then add 2.97% margin to the price.