Postage Problems

[zo_nas3]

Can anyone explain why, as a seller I selected large letter for postage,  but when it sold, parcel was selected and as shown in the screenshot I have to pay the deficit? 

[style_wise]

The Buyer paid you £1.55 postage. Please go to the Post Office and purchase RM 2nd Class Large Letter under 100g for this amount. You do not have to buy your postage from eBay in this instance, even though they would like you to!

[marco@ebay]

Hi zo_nas3, thanks for your post.

Simple Delivery would automatically arrange postage for you, and this is mandatory for orders that cost more than £20.00. However, if your transaction's final amount is not more than £20.00, you can either ship it with Simple Delivery, or do custom postage and purchase the shipping label of your preference with the carrier of your preference. 

Hope this helps,

Marco