Uncaring Poor Service

My usage Voip statement is incorrect. After numerous emails they eventually tell me I must wait until next month to receive a new statement, nor do they confirm the the current statement will be rectified. Dylan Lane keeps telling me not to contact him and contact the accounts department which I did on the 8th July 2024. One would expect a better customer service and caring attitude not just being fobbed off. Utility promised a better customer service?