Furlenco — To cancel the subscription

Hi I have took four door wardrobe and double door fridge from Furlenco in November 2021, and I have paid for 3months subscription after that I said to cancel in January but no pick up was made still I paid for 1month in feb month wardrobe has been picked but not fridge thought mistake happened from them so paid again 1month, I have raised request for cancellation and close the subscription too which was on 19 feb and 20 feb they did not do it, auto deducted has been happened in account for 6months without intimation now they are harassing me by calling and messaging and saying that they will send legal notice