The company gave her the money within a week. It's not like all the plot sold out in a week and she got the money and all this happened in a week. The plot might have been already sold but it takes time to get all the paper works done for the company to pay her and she didn't know if she will get the money before her taaya arrives but she finally got it. The main problem is they didn't show how much time has passed in the drama. We don't know for how many weeks or months samiya has been married or Aaliya worked for asfar or salman worked for shehrish. This problem is there in literally all pak dramas.
Also I still don't know why they showed a scene of Aaliya applying for loan. I guess just to show a forced asfar-aaliya scene like always. That loan scene made everything confusing. Majority thought she got the money because asfar uspe meherbaan hue and approved the loan and she got the money. In one scene they showed Aaliya telling samiya that she was able to pay everyone because of asfar and in the next she got offended and angry at salman for stating the same. This 2% commision was clear only when the writer and director told it on their iv. The makers completely messed up the love triangle and totally sidelined the lead pair for the second lead. That's were the entire drama went downhill.
I still love the drama but it had a lot of potential to be way better. They managed to get perfect casting. Everyone fit the part and everyone acted good. Some of the scenes are so heart touching that even when I watch it again its as beautiful as I have seen it for the first time.I don't have problem with any of the other stories and the drama had great dialogues and all of salman and Aaliya scenes were so well written and well acted. Bilal and sajal looked so organic and natural together.
In response to your first paragraph: It's still not unclear, tbh. If they are creating a lot of fuss for one huge issue for so long and it resolves in a matter of an episode without actually showing anything, it is not good storytelling and direction, I believe.
Also, it's not like I hated the drama. It had its moments, and like you said, there was a lot of potential, but unfortunately, the writer and director couldn't capitalize on that. The ending, to put it mildly, was very underwhelming.
And, yes, we definitely need to get rid of long ass recaps in the last episodes.