Lack of service!!!

Vodacom Fibre! What a joke!! Your SLA states that within 72 hours a consumers Fibre will be resolved!! Evertime I call Vodacom its another excuse and no managers are available, how is it that your management can't even take responsibility for the lack of service you provide!! It is disgusting how consumers are promised to be called back but you don't honour your word or company values!! A one star rating is still good compared to how my query has been handled!!