RAM customer handling very poor

I just called in to do an address change. The lady who amswered first finished her jokes with fellow customer care members while I had to wait for her to stop laughing. I then asked if she could help me now...she then proceeded to take down my reference number without a problem but was rude. She said the line was bad but somehow got the reference number the first time I read it...So I explained that the line is bad but continued to spell out the address and she put the phone down in my ear. This is unacceptable customer handling by a RAM Call centre person.