Yes. Of course, there is a lot of variation in how different MSCs handle the problem of shoppers not following the guidelines, but, generally speaking ..... yes. There is specific information that the client expects as part of what they are paying the MSC for. If the shopper misses that information, the client will be disappointed with the report. So, the MSC rejects the report because they can't send it to the client. Sometimes, the MSC determines a shopper mistake is not a big deal and accepts the report and submits it anyway, knowing the client will be disappointed but will accept the report. Sometimes the MSC is not sure whether the client will accept the report and they submit it to see if the client will accept it, and, if the client accepts it, the shopper still gets paid. If the mistake is not one the MSC thinks the client will accept, it is outright rejected.
Speaking specifically to Aldi reports, the bathroom check appears to be important to Aldi. So, this makes the mistake in question a big mistake. The MSC can't use your report. That's why they won't pay even $3. Regardless of the good information you think it provides, it's worth nothing to them because the client doesn't want the report and won't pay for it. The MSC will have to send another shopper to do the shop over and that shopper will be paid. Okay. You made a mistake. Deep breath. Take it as a learning experience and be glad all you lost was $3. It could be much worse. This could have been a restaurant or hotel shop and you could be out far more money for the mistake.