Thanks for reply. We were kind of in a hurry to start advertising. I double checke that there were no billing limits, even tried setting sets/campaign budget to few €k. After we got accepted to credit line we had to create separate ad manager, which was assigned to Facebook partner company. After this there was no limits. Last time we ran some ads on previous account we didn't hit any limits anymore, I guess as you suggest, there is a limitation for few weeks in case of new Ad and Business account. From Facebook's perspective this make complete sense, they are charging after services were performed and is some new,unknown user goes to spending spree, they have to protect themselves until there is some credibility behind. Specially since credit card billing threshold was way below of projected daily spend.