Without knowing exactly what you requested I can’t say for sure, but there are a few possibilities in situations like this.
For one, I do not think it’s a good idea to set a time limit on magickal results. Sometimes they happen immediately, sometimes 3 days/weeks/months/years later, sometimes they come at an unexpected time. If you demand that a result comes in three days when it was on its way to manifesting, but just on a longer time-frame than you may be demanding, you can stifle the magick and shut it down when it was working perfectly well. As Henry Archer puts it - Desperation is for Losers. Patience is for the Prosperous.
A second possibility is that the spirit you called is not suited for the task. In cases like this, you will usually receive an intuition that another spirit or a different approach would be better for your situation, and you would then be guided to this spirit or receive inspiration for a new way to tackle the problem. This can take a little bit of time as well, so again, patience and a relaxed attitude towards results will reward you. The less desperate and attached you are to the result, the quicker it will come.
I would say that by far most of the time when magick seems to “not work,” it is because of one of these two reasons, most often the first. Nearly every beginner has heard about Lust for Result, and yet it can still catch even the most experienced occultists. The solution is to remember that you have already performed magick, and to adopt the mindset that whatever will happen, whenever it is ready to happen. This is sort of like mind-gaming yourself a bit, but if you can train yourself to be this relaxed about magick it will work a lot better.
I will also mention a third possibility that happens from time to time. If you are too specific, this can also stifle results. Usually it’s better to ere towards being more general than specific. If you do a ritual for more money, and then say “the money has to come in exactly this one specific way,” you deny magick the opportunity to work with its full creative potential. Some specificity is useful, but too much is constricting. This can also happen with seduction and love magick. You may think that you want this one exact specific person, when in reality what you want is a partner with certain qualities and characteristics. When magick doesn’t work in these cases, it is giving you the opportunity to better understand your needs and desires, and this is a result that should be cherished just as highly as any other.