Jesus this is basic stuff, cannot beleive a garage can get it this wrong!!
If you can even feel any movement when tightened up(caps) they are indeed wrong shells for the crank which has presumably been reground ?
I always check turning torque required before I even pot the rest together and there is absolutely no excuse for this kind of workmanship at all.
I would meausre journal sizes, big ends and mains and then look up to see what it should be then check shell sizes.
I can only assume you have either an undersize(reground) crank or the wrong shells for the car.
Frankly I would do the job yourself than trust people that can't even put correct shells in.
tabetha
ps a teeny weeny bit of endfloat is normal, but only teeny weeny bit