Turn around time on repairs to Canon Scanner

I handed in our Canon Scanner for repairs on 8 July 2015. We received a quote for repairs 22 July 2015 which we accepted same day. I have been phoning to inquire when we can have our scanner back and all I get told is that its been escalated and they will let me know when the part arrives. Apparently Canon do not stop parts here in SA they have to come from overseas. I cannot understand why it takes so long to get a part here? This unacceptable service and turnaround time on repairs on a name brand like Canon!!!