Selecting 1st or 2nd Class post

[sailingkid99]

I have cancelled my listings as ebay has changed my delivery option to larhe latter up to 1kg.

My items weigh grams no more than 100.

How do I select 1st or 2nd class post in my listing as I am being given no other option other than large letter at £2.72

I am using a PC to sell my products.

Any help appreciated. 

[john1297576]

Selling new items means you are not a Private seller. Business sellers do not have to use Simple postage.