NO, don't send the bike back, demand a replacement frame be shipped to your LBS, and when it gets there they can stip the old frame and build up the new frame. Then they can ship the old frame back to the maker. The maker should pay for all shipping and labor.
Untill then use blue lock-tight.
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Bentbaggerlen
"When the spirits are low, when the day appears dark, when work becomes monotonous, when hope hardly seems worth having, just mount a bicycle and go out for a spin down the road, without thought on anything but the ride you are taking." - Arthur Conan Doyle