No other way to Get Proper Service .IDENTITY

I was told by clearscore that I am listed due to being in arrears for 6 months with Identity which I remember going into the Glen branch & settling years ago. I phoned in & Was Referred to Another ext where I spoke to a Mishka instead of telling me the correct number and who to phone as my account was handed over she gave me details of amounts that do not make any sense and insists I made payments via a method I don't even know how to use. Instead of understanding this is 4 years later & I need to Sort it out however the best way is . she gives me an incorrect contact number & Continues using a Undermining tone. CUSTOMER SERVICE obviously needs to Relook at Job Descriptions . I am disgusted & dissappointted Your customers who want to correct things .are treated like Nothing. . ? This was most likely I finger error or some mess up at the branch but if the co can not help me sort this out who must?