They did re-align it.
Ask them for the before and after print out from the alignment machine. All alignment machines print out the pre and post alignment data as posted above. If they can't supply it, they didn't do it, How alignment machines work, is the car is put up on the alignment jig, and alignment laser receptors are mounted on the outside of each wheel. The factory alignment specs for the specific car are programmed into the machine, and laser measurements are taken, then adjustments to the suspension, etc are made until all the laser measurements are in spec. Then the car is taken on a ten minute test drive to check handling, then put back on the jig, and the alignment specs are re-checked for accuracy. Job takes about two hours.
Also, check your tire pressure (which they should have done for the alignment). A low tire pressure will cause a car to pull in that direction.
2015 i3 Rex, Capparis White, Tera World, Technology & Driving Assistant, Parking Assistant, Harman Kardon Audio System, 19 inch Rial X10-i wheels, EVoInnovate EVSE