No assistance from Vodacom

Our Senior Pastor is late. He had a vodacom contract under the church name. We have been trying to cancel this contract, however we have been sent from pillar to post. We are then told that we should not have contacted other Vodacom departments first. We have even been to Vodacom offices to sort this out and unfortunately it's unfruitful. We need to have the contract cancelled due to his death. A death certificate has also been presented, yet no way forward. The number in question is ***. There may be 2 other contracts linked to this. Can someone please assist us.