One of the simplest yet effective ways to select the right marketing agency and check your would-be partners’ reliability is to contact their support. We recommend you establish first contact by email. If the company developed proper guidelines for their reps, you must receive a response within two business days max.
Next, in case everything went smoothly, contact their reps by phone and ask some random questions about their services. Properly trained customer support representative must give you an immediate answer. If not, it would mean the agency hasn’t worked out a set of SOP (standard operating procedures) of processing newcomers, which is a big red flag.