I am sorry to say that, but there is
no response time guarantee, even for paying customers. Our component pricing policy does not allow that. The prices would have to be significantly higher if the guaranteed support shall be included.
However, in our forums, we first answer questions of paying customers and then of non paying ones. Based on the stats we have, our average response time (for paying customers) is 1-2 business days.
If you need guaranteed support response time, you have to buy it. The price is dependant on the fastness of the response
http://www.artio.net/en/e-shop/support-services (you can choose from 3 days, 2 days, or 1 business! day support response time).