Saw your comment on the SPAT team, and I had the loose clip problem also. Take it apart, and "gently" squeeze on the bend of the clip with a pair of pliers, careful to not break it. Put your SPAT back together and it should be nice and tight now.
I always wear mine on my shoe as it gets the best results there.
Thanks so much for the comment on my blog. I'm sorry to hear that someone thought you were pregnant, too! Your response was perfect. I can't believe how frequently it happens! Here's to a great 2015! (PS Congrats on the success you've had so far! I'm just getting started, so I love seeing people like you who have been successful at weight loss. I appreciate the motivation!) :)