eBay

I was charged two postage amounts for one parcel to be sent to Queensland. I am new to the process and was looking up Aus Post on Ebay for prices and how to go about sending the parcel and then I noticed that there was Sendle who are much cheaper and...

On an item I am purchasing there was a 10% dicount if buying from an Australian seller. On the invoice from eBay it does not have the discount on final price. How do I get that discoun and does the seller abide by this discount.