significantly decreasing quality

I have a Brother MFC 6490. The printer is due to its paper guide (180 °) a little more demanding and I have long searched for a usable, affordable photo paper. The first batch - about 1 year ago ordered was super. While in 20 packs, but with sensible packaging. Both with original inks and with cheap inks super results. This time came a broken remains of cardboard. (Personally, I would not have accepted the package, but the neighbor meant well. Because then you can not say anything.) A part of the paper was upset at the corner. A print, at least with the Brother printer, no longer possible. The paper is too hard and does not feed. A contact Pripa was inconclusive to a meaningless standard mail.
It may be so, which is supplied in the paper changing qualities, then it should be pointed also to participate in a game of chance in the product description but.