Does debt consolidation ruin credit score?

I’m over my carry in debt, we hit the prolonged credit news with the tall 600 score. But we can understanding with putting up my total compensate analyse only to compensate my credit cards some longer. I’ve regularly distrustfulness of Dept Consolidation Co. as the Scam. But may be they’re not. Any a single ever work with one? Does it hit we Credit measure go down??