First time experiencing bad service from Alert.

Mark in PE very unprofessional. Mark insisted on invoice before he can say what the problem is with cam that they supp****. Once we got the invoice he said we need to log a warranty claim and that its the wrong cam supp****. We ask if we need to make an appointment with him and his reply was no need. Now the cam is removed and he is not in the office. His reply is that we need to drop the new and old cam off at the office. Now we without transport. He delays the process unnecessary. Why not give us all the information the process we need to go through and time it will take. The rest of the staff give excellent service.