Logos seems to default to the account credit. That's not what I want. im trying to accumulate enough in the account credit to upgrade to platinum Level. I can go only small amounts on my card the bigger ones I must save to get up there.
I think you can fix that by going to the "Credits" tab on your account page:
Click on your account (top right of any company web page you're logged in on), click Account Settings and select the Credits tab. You'll find two tick-boxes at the bottom to control the preference of company credit over direct credit card charge.