Lowes Carpet install

Ive got a 350 sq ft bonus room that ive completed myself (drywall, minor electrical, insulation, plumbing, tile work) and ive reached the point where i had to get someone else to do the work (carpet install). i bit the bullet and went to lowes, picked out a carpet, and paid. Lowes, from my basic understanding, if you spend over some $600, the installation is supposed to be free. I paid roughly $1000 for the 420 sq ft of carpet needed, but I see on the cost breakdown, an additional $500 for "Labor and Materials". I am assuming that is tack strips, which is understandable somewhat, but i thought installation would be free. my total bill was $1500 and its taken a week and a half and still no carpet with little word from lows. I contacted the manager to find out whats been going on and apparently, my delivery has been delayed multiple times.


two questions...shouldnt "materials and labor" be included in the carpet price? i was under the impression that when i buy the carpet, tack strips, pad and install labor were all baked-in to the price i was seeing?...otherwise, im actually paying for an install.

second question...is $1500 a reasonable price for a 55 oz carpet, install (odd shaped room with a dormer, then square area, a closet, steps, a landing, and steps)?

it seemed a little high to me, but its not a square room either.