complaint ignored

Hello, I wanted to file a complaint and express my great dissatisfaction with the way your employees work and behave with customers who pay for the Virgin Internet service. I would also like to resign from your services as soon as possible. On February 13, 2024, I purchased a router from you with monthly fees of £27 and the first month free of charge. The contract clearly states that for 24 months the bill will be £27 per month and after 24 months the fee will be £54 per month. From the date of purchase, i.e. February 13, 2024, to May 23, 2024, I have not received any invoice from you, nor have I received any information that could give me access to the online account. I received my first bill on May 23, 2024 and was charged £88.50 for main service. I don't know what main service is, I haven't used anything like that, I haven't purchased anything like that. After receiving this bill, I decided to write to you and asked you to explain where it came from and what it is. In the following days, I wrote several more e-mails asking for clarification, but to this day I have not received any answer on this subject or an answer to my question where are the bills from previous months and why am I charged with payment for the first month of using the Internet if the contract includes it says that the first month is free of charge?? I also didn't receive any response. Instead of an explanation from you, I received three more bills each for a different amount .This is fraud and does not comply with the contract concluded during the purchase. The contract signed with you contains the CHANGES DURING YOUR CONTRACT section in which it is written: 
We may increase our charges under this agreement at any time. We may also change our terms and conditions, the equipment and the services that we have agreed to provide to you. Subject to the exceptions described below, if we do any of these things and the changes are not exclusively to your benefit, we will notify you of this and inform you of your right to cancel this agreement without paying an early disconnection fee by giving us notice in accordance with Section N (or Section O if you are an customer) of our terms and conditions.
In addition to changes that are exclusively to your benefit, if we make: (a) changes to the equipment or services that are expressly permitted under the terms of the agreement, or to certain cost-based charges (e.g. paper billing charges or international call rates) in a way that is not likely to materially disadvantage you; (b) purely administrative changes that have no negative effect on you; or (c) changes that are directly imposed by law, or where we have a legal or regulatory obligation to pass on cost increases, we will notify you and you will not be entitled to cancel this agreement within your minimum period without paying an early disconnection fee. If the changes we make relate only to an add-on, any cancellation right will be limited to that add-on only. If the changes we make only relate to a supplementary service, and those changes provide you with a right to cancel that supplementary service, we will notify you of this and inform you of your right to cancel the affected supplementary service and the agreement for your core services without paying an early disconnection fee. Any cancellation right will be limited to where you are already signed up to that supplementary service. Please refer to the full Virgin Media Terms and Conditions for further information. I received absolutely nothing from you from February 13, 2024 until May 23, 2024. No bill, no information and no answer. I wasn't informed about anything, I was charged for something I didn't have, I didn't use it and I didn't buy it without any explanation. I don't know if you employ idiots, thieves or fraudsters because everything points to that. Is this what you teach your employees? I am downright outraged by this situation and apart from this complaint and the e-mails sent to clarify this, which were completely ignored by your employees, I will write a complaint even higher and I will try to publicize this situation by reporting it to the local newspaper, thus helping others who find themselves in a similar fraud situation.