There’s a fair bit waffling gone on in that post lol. I’m thinking you’re stateside so maybe things work differently over there but here (UK) if you return meds you usually take them to a pharmacist to dispose of not your GP. Although audits should be done on all medications both coming and going it’s far more important to check the quantity of each meds going out than it is coming back in so when meds are returned pharmacists will sometimes just take the word of the individual returning the medication without checking it at all. This is more likely to be the case with bulk quantities as pharmacists have much better things to do with their time than to be individually counting out 100s or 1000s of pills. With you having bottled meds my guess is they’re less likely to check than if it were in blister packs as this can be a laborious task.
Overall I’d say as long as the packaging is correct and the pills at least look similar and quantity appears right at first glance you’ll probably get away with it. Be aware though you always come across your jobs worth individuals who do EVERYTHING by the book ALL the time and if you encounter one of these people you’ll get caught out and possibly denied medication in the future.
By the way my knowledge of this comes from working in the care sector so I used to frequently collect and return medications for all sorts of ailments in varying quantities.
