Poor customer service

I have been a loyal customer at cellc and I just called to cancel a sim card. I spoke to the most unfriendliest consultant in my life. For starters she put me on hold for over 3 minutes without asking my details and after I told her that I wanted to block my Sim twice she wanted to block my phone and asked me for my imei number. Her attitude stinks. She didn't even put me to the survey to voice my frustration. I feel as though this company treated me like dirt. I am canceling my contract and I want nothing to do with cellc any further. This is the type of pathetic service they provide. I called to cancel ********** 627. Called from ********** 655.