Unhappy customer

They don’t even deserve my 1 star, I took a phone contract & when they delivered it to me it was faulty. I contacted them within 7days and it took them 3 months to collect the device. Now it is the 5th month still no communication but I am being deducted every month for the device. I call them every 2day for a follow up and still no way forward. I don’t want that phone anymore I want everything cancelled and I will go somewhere else where they will commit to customer satisfaction first, great communication and respond when it’s needed. Plz help me resolve this issue.