Bad service

Ive recently got a new phone on contract. At first i was happy with the phone. Yet i noticed that peoplw dont always seem to hear me clearly over the phone. After doing some research i found out that this is a manufacturing problem of this particular phone. Vodacom refuse to assist me soeting this problem out. Im not impressed with this service and think its may time to go to a different service provider who do want my moneys and willing to deliver.