The staff was helpful when I visited. However, the...

The staff was helpful when I visited. However, there was a huge goof up in communication after I submitted my mac for servicing. They called me one week later and first told me that it will be ready in a couple of days. However, after that they called me again and told me that my Mac's motherboard was damaged and I should be buying a new one. Since, that laptop was not usable anymore, I started searching for other options. But when I visited the centre to collect the Mac, they gave it to me in a fully functional state. And the technicial said that I shouldn't have talked to the receptionist when the fact is the receptionist called me to tell me that my Mac was damaged enough that I should buy a new one. What if I had already bought a new laptop before collectig the damaged one?