Bird offering Free helmet only pay shipping $10

I ordered this helmet 2 weeks ago when shipping was $4.99, also I have never taken a ride on Bird (but do have an account on the app)
Free helmets are available to active Bird riders.
- Must have taken at least one ride
- Must live in a current Bird market
- One helmet limit per active rider
$9.99 shipping charge will be applied at checkout.
Sizing:
Small: 54-56cm
Medium: 56-58cm
Large:? 58-60cm
*helmet may vary in color and design (black or gray)
https://birdhelmets.myshopify.com/