If I am not mistaken, the “receipts” did exist back in the time of Prophet pbuh.
Quran’s reference to the witnesses is linked to the lengthy financial contracts between individuals, or groups.
In criminal cases, no woman needs to be reminded by the other. Hey if you are a woman, and you saw somebody’s head chopped off, the court will rely on your testimony, and not ask another woman to second that.
So the Quranic reference to two witnesses is applicable to the financial contracts and not some packet of daal that a woman would buy from the local desi store.
Do you need lengthy financial contracts for a kg of gobhi. 
Yeap. This is exactly what we are discussing. And Miss Noland too (I believe her sincerity) is questioning the interpretation.
When we interpret Quran in light of the life that existed 1400 years ago, we will make mistakes to use the same interpretation in today’s world, or the world that may exist in 3010 AD,
Or the Universe and the planet we are on in 5010 AD.
And unfortunately 95% of the so-called scholars today fail to see the differences between 600 AD, vs. 2000 AD. And they especially lack vision to foresee a life in 2050 AD let alone 3000 AD or 5000 AD.
So we have a choice. Follow these illiterate myopic “scholars” or take back The Book from their dirty hands.