Poor service and network

I have taken out a contract for my brother on the 21/04/2019 and since then he was unable to send or receive text been going in and out of the brunch in promenade and no one is able to assist all they want is us to do a Sim swap of R65.00 for they faulty Sim apart from the fact that they have been sending us home and asking us to come back the next day we also called they call centre no one nows what's wrong with the Sim card yet they deduct money every month I am so disappointed in vodacom shame.