I had an excellent experience with Topps recently. I purchased a Series 1 Walgreens Hanger Box back around May of this year for the purpose of getting some yellow parallels. There were no yellows in the box so I sent a message to Topps not really looking for the 7 yellows but just to inform them of the problem. Even though it did take some time for a response and some forms to fill out I received 7 yellow cards today along with five 2020 Series 2 14 card packs and a 2020 Player Medallion pack. Not too bad.