I have a problem. Please

Good, I present a problem with the rewards system, because yesterday I bought a gun from the borderlands pre-sequels and they did not attach it to me but they deducted the points collected and the purchase was inefficient in front of the system, so much so that I did not count it for the special shopping weapon for the borderlands 3 that was the only purchase I was missing and the weapon was not locked as purchased. Please if you can help me with that I would appreciate it.