Ongoing no answer to my billing enquiry

and still my billing enquiry not resolved, this morning i receive a call from an agent saying they are busy with my query and that she will get back to me and i also enquired about cost to cancel contract which she said they will get back to me , now 08 April 2025 14:16 i receive an email saying i must phone cell c to arrange collection of the router, so no answer about billing enquiry before i know how much cancellation is going to cost and what about billing enquiry