Thank so much your your feedback, it's lovely to hear that you received such friendly customer service. We do find that our Iron On Clothing Labels need to be applied with a hot iron, pressed firmly for 10-15 seconds, allow to cool, test a corner, if it lifts repeat.
We use the Labels too and are more than happy to share our tips and tricks live on our website or via email.
Warm regards,
Stuck on You Customer Service