2 months to receive spares and shocking service

My Toyota Hilux was ****** and recovered in April and has been in a panel beater getting repaired. A computer was ordered on 12 May and an estimated delivery of 18 June was quoted. We were then notified that the estimated delivery would be 9 July. We attempted to get input from the call centre regarding the delay and I am beyond frustrated with the feedback we get. There is just simply no concern. How can a spare for one of the most popular vehicles in your line up have a delivery turn around of 2 months. How can the call centre display a pure lack of concern and respect for clients that they are supposed to be supporting. I am truly sick to my stomach dealing with you and wish to get answers from someone.!!