I have been selling several items online for the past few weeks. They are staggered to end throughout the week and not all on the same day. I had a buyer win one of my items and not pay for over a week. My policy states that payment is due within 48 hours and that I ship the next day. I sent several invoices and emails to the buyer but received no response. Just two days ago, the same buyer won another one of my items and I assumed that she was waiting to send payment at once. I received payment from her yesterday and was going to ship out her items today when I took a closer look at my paypal account. I personally do not combine shipping because I don't charge too much to begin with. This buyer however took it upon herself to adjust the invoice from paypal and discounted herself $20!!!!!! I wonder how many sellers she has scammed in the past by doing this. Its a good thing I double checked the invoice before printing her shipping label!! I am sure many buyers would just be happy that some form of payment was received and ship out the stuff right away... Now if it was a matter of her wanting combined shipping, she should have emailed me asking politely if I did discounts. If she did that, then I would have no problem giving her a few dollars discount... Just thought I would warn all you diligent sellers out there. There are really some horrible people on eBay!!!