Lies to lure the customer

I took out a fiber contract with them through their vendors, now it has come to my attention that there are fees that I have to pay that were not disclosed to me while I took the contract. All I want is for them to remove those fees and we can carry on with my contract or they cancel the thing then I pay for my full usage. I spoke to Valencia who refused to get me a manager and transferred me to retentions and the lady from retentions could not pick up my details and the line cut and no body called back. Non disclosure is a serious offence as I was led to believe one thing while I was sold the other. This is my attempt to get your attention, the next will be legal.