No authorization number and now pay excess

So my pool pump burnt out.<br> <br> Requested it to be assessed and replaced.<br> Not once did I get a authorization number. The company replacing did not contact me to fetch or install new one.<br> <br> They are now requesting an authorization number. How can they replace without it and also want me to pay an excess of R750.<br> <br> I could get a replacement for R600 and would pay that rather than excess and not approve the replacement.<br> <br> So who is in the wrong?<br> <br> <br> Not awaiting for me to give approval?<br> Not letting me know about the R750 excess?<br> Not giving me other the supplier an authorization number?<br> <br> Totally unacceptable!!!