I am a longarmer and I can tell you this...it will be EASY to pull out the stitching with it being so loose. She had tension problems....and I'm guessing you do now, too! Only cut threads from one side. Pull the loose thread through, and the other side will come out in big long threads. It will go quickly. I don't think I would take it back to her to fix, though. She should have checked it when she took it off the machine. JMHO