The checkout says “invalid address” or won’t let me enter my address

This is almost always down to the country or state field. Make sure the country is set correctly and any required state or region is selected, then try again.

If you’re using Apple Pay or another express checkout method, add your address first before selecting the payment method — the quick-pay routes can fail if the address isn’t set. If it still won’t go through, email us with a screenshot and we’ll sort it out.