Lie 18

While the cartridges are supposedly compatible with epson printer WF2520 they do not work yet. This is not the first cartridges I install a printer, so I know how. My printer recognizes the cartridge but informs me that they are not official, so I can do nothing. The Epson company may be required to block unofficial cartridges, but in this case, it would update the list. I can naturally not send the items as they must be unopened. I hope these words you seem stupid to me. Do these cartridges work without opening the plastic? The snake bites in the tail. In short, very disappointed with this purchase I no one to counsel. Bonus cartridges shown in pictures are not at all similar to what one receives.