Originally Posted by FBinNY

Sometimes it's better to be practical than to assert your rights.

If, as suspected, the collar is spot, or tack welded at only one place, and therefore relatively easy to remove, then removing and replacing is faster and cheaper than a FREE warranty job.

Consider $10.00 or so for a collar, plus something like an hour's work, compared to breaking down, packing and shipping a bike. Not only that, the eat it and DIY approach can solve the problem and have the bike on the road immediately, vs losing weeks at the peak of the season.

Of course, the OP should contact the maker, and email photos, and try to get them to pony up for the replacement clamp, plus possibly something for his labor, or that of a local shop. But even without a cent of compensation the $10.00 or so for a collar is dough well spent compared the the costs associated with a free job. Even gas money to drive back to the original dealer would cost more.

However, the analysis depends on two conditions.

1- the collar must be easily removed
2- the seat tube OD must be standard, with a replacement collar readily available.

If both conditions were met, and I were the OP, I'd have done the job by now, and be ready to take the bike out for a ride on Sunday.