Bad service received from momentum health4me department

My brother injured his left foot on Saturday 30Sep, on Sunday when we tried phoning Momentum Health4me line to get authorization to go to a doctor or a hospital they said thsi service does not work on Sunday we had to wait for Monday, we went and saw a doctor on Monday we got X-Rays and Sonor done and the doctor told him he has to see a specialist on Thursday at 17:00 he went the specialist told us he has to go for an operation on Sunday 8 Oct we waited on friday to get procedures codes to submit to the medical aid. As soon as he got the codes we send it through to your team we got a reference number confirming they received the documents. A lady from Momentum advised him that she will have to phone the case manager and ask to look atvthe documents and we should get authorization by Saturday 7th of Oct. Now on the 7th they tell us we must wait until Monday???? How the hell must we wait if the procedures isnon Sunday the 8th?????? No one is willing to assist us????????????