Booster notification


I notice that I regularly receive a “booster notification” in my mailbox. That will look like the booster in question is newly purchased.
However, that actually never turns out to be true. So I just got the message that @Henkjan the Warrior the booster #iwantthisbooster has purchased /set. That is, according to the booster review, actually already happened on April 13.
Sometimes I receive a booster notification, which is already largely 'on'.
Is it not more convenient/better to send that notification at the time of creating/purchasing, and not days later?
Maybe it's just a buggy..