Incredible disconnection!

I am writing as a wholly Unsatisfied customer if the George branch. On the 9th of April I took my Mac laptop in as the night before my screen flickered and then failed. On taking it to the technical depot , I filled in forms, mentioned it was out of warranty ( by 2 months) and asked for a quote. I was assured this wasn't a ridiculously long process and my Mac would be tendef to as quickly as possible and I would be informed along the way. I did have to however pay a quote rejection fee of R450! My quote came back fairly soon after at over R9000 for a faulty board. I had to ensure my insurance would cover that and confirmed the job as green to go as soon as I heard. I was told in email that the part would arrive 22 March. I called on the 20th to see if I could expedite and collect the 23rd. telephonically it was confirmed. I drove through from knysna to collect and told that no ways it would s a while yet as that was jus for the part and the oils not give me a date! I since have been informed that the part didn't arrive and expected arrival date of said part is 10 May!!! Add repair and dispatch I'm assuming the end of May is when I will see my work laptop! At great expense! I'm an entrepreneur with 2 small start ups and have lost hours and hours never mind thousands of rands and many irate customers. What kind of service is this? Do I have the only Mac air in SA that it takes months to repair? What about my lost time? Very displeased and I will never deal or recommend this route for any repair. My insurance money had been paid out and sits in my account. Thank you incredible disconnection