Staff cant answer questions, rude, bad service

Hi<br> <br> I have a credit limit on my account and i have my account for many many years, this is def the last straw, i will definitely be moving to another supplier as my credit limit did not kick in this month compared to all the other months that it did cut off.<br> <br> I want to know why it did not cut off and why was the credit limit taken off for this month compared to all the other months.<br> <br> When i spoke to Bianca, all she did was give me alternate answers and could not give me answers to my questions and Robert just cut the call on me despite me telling him not to transfer the call.<br> <br> I am very frustrated and angry as this leaves me with a huge bill.