Unable to block numbers

Yesterday, we tried to block two of our numbers because our phones were ******. Both of the numbers could not be blocked for separte reasons. The first number was still in operation, since the theives were trying to ****** money from us, and vodacom phoned the person using the number. vodacom then said to us that the person using the numbert says that the is theirs and so they are unable to block the number. After waiting for an hour to block the second number and having our call cut and then calling again and waiting, the system was offline. vodacom was unable to provide a service which we are paying for. I think that it is pointless having people working in a call centre if all that you're paying them to do is tell us that they are unable to help us. I find it surprising that when vodacom has to complete a contract or perform an upgrade, the service which they provide is efficient. Yet when a customer, who has 3 contracts with the service provider, needs a number to be blocked all of a sudden vodacom is incapable of doing what needs to be done. It is disappointing that the network is creating a situation which aids ******** activity. I wish all of us had enough for a bill board.