How are the chargebacks dealt with? Are we liable for the whole purchase amount even if we only get roughly 10% of the purchase price.

As far as chargebacks it's very important that you sign up for one of the fraud protection applications that will be available through each merchant providers. Those will stop those fraud sales from getting through or they will cover that sale. Each of them work different but the bottom line is that as long as you are doing your job and you provide them with the info showing that the customer bought (we'll have their IP address etc etc) and we show we shipped product then you'll usually win. Again...it's important to keep those fraud protection filters on as we require and review with you at time of onboarding.