Whoa slow down dude. They made a mistake and they will make it right for you. They always have for me.
Unfortunately it may have screwed up your timing or scheduling. Sounds like you planned on doing the install this weekend? It is not the end of the world yet and spring is still around the corner.
They will price match everything and still provide shipping and handling and really do have good customer service in my opinion. Keep that in mind if you plan on making more purchases in the future.
2013 Mustang GT Premium, Deep Impact Blue, GT Track Package, Recaros, Ext. Acc. package 1, All Weather Mats, GT500 Axle backs, Airaid CAI, BMR Rear LCAs, BMR Relocation Brackets, JLT Oil Separator(s), Barton 2 Post Shifter Bracket, Steeda Motor Mounts, Barton Short Throw Shifter, JHR Clutch line, BMR adj. UCA and Mount, Kooks 1 3/4 headers with catted H, DSS Al Shaft with BMR Loop