Virgin media complaints

Feel like I am being fobbed off all the time! 

I moved home in September 2024. I done it all via the webchat service. An agreed price of £88 for the packaged was agreed. I realised in January 2025 that I was being charged £160! So I contacted VM who said they had no knowledge of this change to the contract taking place. I requested the webchat transcripts and the evidence is there in black and white that they changed and agreed package amount of £88. I called back and spoke with a very helpful man who confirmed i was infact right. I was on the phone for over an hour but he was unable.to get hold of the people who can decrease the package price and to sort out the refund and make my account upto date. I was told a manager would call me back the next working day. That call never came. 

I've just got off the phone to another person who was very unhelpful. Told me there was no evidence to suggest the package had been agreed of £88 despite me telling her the proof was in the web chat transcripts! Feel like i am being majorly fobbed off and going around in circles! 

Can anyone suggest my next steps as this is all getting very frustrating!