Slams the phone my ear

Call centre calls me for sum stupid reason, i do my payments on time and even extra every month, she (dnt know the name) wants to know today when do i intend on paying, k so if i miss a payment i can understand the nature of the call but dnt call me when i do payments and on time all the time. Will b paying up this and dnt wanna deal wth this *** attitude again. She ends my call but slamming the phone down on me, wow now give tht call centre agent a medal for *** service, she atleast deserves tht.