How is too much (Re-mount)

I've seen threads like this before but searchbar couldnt find any.

I bought Comi's back in March. Got them mounted at -7cm and skied the rest of the season. I just bought a pair of Fritschi's and had them mounted last week at -5 cm.  I talked to the desk and left a note on the ski "-5cm core center" 

I went to pick them up today,  -9cm is what theyre mounted at!!! Talked to the guy who helped my last week and we measured and re-measured and everytime, -9cm.  The form I signed and reciept had special instrucitions saying  "-5cm core center" 

I told them I dont want them to remount and I want to talk to the ski tech (wont be in until monday)

I'm not going to let them ruin my $600 Comi's by not mounting them correctly.  btw I paid $50 for a fucking mount



Can my Comi's take a 3rd mount? I'm 6'4'' 220lbs and ski hard

At this point I'm expecting them to go online and buy me a new pair of Moments (Night Train) for ruining my skis. 

What are my rights and what should I be expecting out of this?