Just for me, I noticed an item I was watching jumped $10 on the same day vouchers started.
Then a scanner I had already bought from an eBay seller went up 20% on the same day the store became part of a 20% discount deal code CRACKA20. The scanner is now $165, and I bought it 10 days ago from them at $129 (so MORE than 20%). It had still not arrived so I contacted the seller and asked where it was, or where is my tracking number, and his response was
Unfortunately I have been advised by our warehouse team that due to an error on their end this order hasn’t been dispatched as of yet
In other words, I did not send it because I can sell it for more to the patsies who buy with the discount voucher and even those who buy without using the voucher.
See proof of this here: http://i.imgur.com/q1iU7Ar.png
From this thread, it appears to be common practice to boost prices.
https://www.ozbargain.com.au/node/310175
Moral of the story: if you want to buy something on eBay, save it to your WATCH LIST and note the price down (there is a little "Add note" feature in the watch list). That way you can tell when they boost prices to match the bogus "discount".
This price manipulation is illegal in retail brick-n-mortar stores, and it's high time it was made illegal on eBay too.
I'm so shocked that they would do this!!