Bad service

Basically I did on online call back request. An agent called me back on 27/01/2022 , I requested an LTE unlimited Sim car deal with a Samsung phone. But then on the 2nd of February 2022 I called you guys to cancel the phone contact. To my surprise the phone was delivered, I called you guys same day the phone was delivered to request that you send a courier to collect and cancel the contract. Today is the 17th and no one has called me to arrange the collection of this device and whenever I call in I am told you will escalate the issue. Till today. I want this contact be canceled and no deduction be done on my account.