3rd complaint to fix Virgin's law-breaking changes to my account!! This time it's the account duration..

This summer I posted to this board about Virgin changing my broadband account to a much more expensive package when I moved home, despite my stating REPEATEDLY that I wanted to keep my existing contract (and paying for the home address change). It took 2 official complaints and posts to this board to get the money refunded (only finally refunded in November after I had paid it in June).  Now, because my contract should be coming to an end, I checked the exact date...and I find that Virgin have put my contract start date as 23 May 2023 not 16 May 2022 which was when I took out the contract.  

I want my original contract honoured. I want to end it as soon as I can without getting any penalty. This should be on 16 November 2023.  It is appalling that I have had to make 3 complaints about this error...that was Virgin's I suspect deliberate mistake as I said on the phone and backed up by messaging my clear insistence that I wanted to keep my original contract terms.

Please can someone help me sort this? I have been very ill, otherwise I would have pursued this more vigorously, but right now I am going to pursue this to the Regulator and to Court if need be. Hopefully Virgin will fix this before I need to do that.