Bought them last Saturday , i.e. 6 days old.
Worn round the house and once last night at football training when the fault became apparent
They are the kind with the small chamber in the heel compartment which holds a small toy car.
The problem is when he runs the heel part of the insole slides forward and collapses into the chamber. As such they are unwearable for any kind of running around.
AIBU to expect a refund?