postage costs

[sbur8252]

Hi, can anyone help please. I need to add postage for an item the size is 72cm x 50cm (car mats, so not heavy), the only option on delivery is 61cm x 46cm , how do I adjust this, it doesn't seem to give me any options ? many thanks if you can help me 

[**peaseblossom**]

That's too long for Simple Delivery so you have to try and opt out and buy your own postage.   During the listing process after selecting category and entering item title scroll down and click on the box under the heading Package Size.   At the very bottom of the pop-up you should see: Oversized.  
Select that and you should get: Domestic postage/Simple Delivery is unavailable for this item.
Then click on Add Primary Service to buy your own postage.

It has to be done on a laptop or desktop rather than the app.  If the option doesn't show up try changing sub-category or category.