Hi @lisa47544844jo ,
Thank you for your post.
Thank you for your post. Simple Delivery will become mandatory for private sellers from April 15th but for now you should still have the option to choose your own postage.
In the meantime here are ways other users have worked around it
- click collection only then click back to postage only and the custom options appear
- switch to advanced options at the bottom of the postage section and click on the pop up
Thank you,
Kat