There is no cognitive problem with Roland, if someone new writes to Roland and tells him that he wants to buy a bass he is always very attentive to the potential buyer, but once the payment is made, it disappears. On the other hand, Miami Strings has a good relationship with Roland, but at the moment I exposed my problem and if they could help me in an altruistic way talking with Wilfer about my bass, they sided with Wilfer (obviously taking care of their interests)