We have cards that we use for business. Makes it easier to write just one check for supllies that type of thing. They always get paid in full every month.

Yup, same thing. They lowered our credit limit on one of them.

Countless phone calls to get it restored. The reasoning for lowering it...we never used that much.

When they lower it, it does effect your credit. They don't have to explain WHY they lowered it. Boy was the whole thing a hassle to straighten out.