Do not use this company if you want communcation

I have just left Scottish Power due to their complete inability to communicate with me. Despite repeated requests for information from them regarding my bills I did not receive any. If i did get a reply it just stated an apology and left you with no further information. Eventually I ran out of patience and swopped to another company out of frustration. Today I noticed that they have taken over £180 in payment for a final bill which I have had absolutely no notice off. I know that the money was due to them but to take this amount with no notice is not acceptable. I have contacted them about this and only received the usual trite apology and the statement that the bill was issued. If that is the case why have I not received a bill from them since I joined them despite my constant requests and meter readings. I would never use this company again and would suggest that others avoid unless they like being kept in the dark about their bills.