Sorry about your luck ,but if you had taken our advice you wouldn't be in this predicament .This is one of the main reason's we say you need to go to a pro shop .There wouldn't be any sending back and cost's added and there wouldn't be any setup charge's to boot X2.
Now you have these extra charges of shipping and re-setup charge's to boot ,all this has now left a bad taste in your mouth.
As for the target I'd definately march it right back to where you bought it ,but then again if you didn't read the instruction's carefully you just may be out of luck on this one .
I don't mean to jump on you about this ,but this is why most of us on this forum highly recommend going to a repetable pro shop ,so they can set you up right the first time ,there most likely would be no need to return and if you did you wouldn't have to put any extra coin out of your pocket .
I really do hope thing's work out for the best for you in the long run ,but now you'll understand our reasoning .
Good luck and keep us up to date on your progress.

nubo