I do understand you're not happy having to pay for services you don't use. Since you don't need your fixed line, may I suggest the Horizon Plus Duo bundle? It offers the same TV and Internet package you currently have. It would be CHF 89.-/mth. With the current promotion the first two months would be only CHF 49.-/mth. Additionally, we would also waive the activation fee. In case you are interested, I can arrange for a colleague to call you regarding change of your subscription. On that occasion any other question you may have can be personally discussed. I would only need a phone number and indication which time is best to call you.
Hope you will find this information helpful. Looking forward to your response.