Way back when I used to work for a Sound company if you wanted the big discounts from the manufacturers you had to pay by check or bank draft. Today, inorder to receive any type of other than a normal sales price its still cash as you walk in the store. If I buy over the phone after I see something on the internet from a reputable dealer its by card. What type is not his business. In all the years i have used the internet I have only purchased once from an audio Karma dealer and once from e-bay. Both by check. All of us using the same bank. I guess I have been lucky. No problems.