I've been a MS quite awhile, but I mostly lurk on here. Something happened recently that has been perplexing me, so I wanted feedback.

I do grocery store shops for North Fork. I'm in an area where some of these are extremely hard for them to fill, so my scheduler has me do them frequently. One of them is in my small town, and I end up doing more shopping than required, including my regular shopping in the process of evaluating multiple sections of the store. Other customers and at times employees can get chatty, so I usually spend quite awhile in the store. I record my times beginning with when I enter the foyer and ending when the sacker leaves my car after unloading my groceries. Time before last, I was in the store over an hour. The register I used had WRONG times on the receipt--off by 15 minutes or so. I clearly stated this in my report. I double and triple checked this with notes I made on my phone during the shop.

The reviewer told me I must be mistaken, because I was in the store too long and my time out was later than the receipt by too much. I explained, but the reviewer persisted. I contacted my scheduler and explained that my times were accurate, and he contacted the reviewer and explained. In the end, I somewhat altered my report and included more description about the erroneous register.

I just did the shop again, being extremely careful with my timings. The register was correct, but my time out was a few minutes after the receipt, because I consider time out to be when I conclude my interaction with the sacker...since that is part of my report. I think the difference was about 4-5 minutes.

Again, the reviewer told me that my time out didn't match the receipt and that I must have recorded the wrong time. I was asked to correct it, so I just ended up using the time on the receipt as out time, even though I was at the register a minute or so AFTER the receipt was finished, and then was still interacting with the sacker for several minutes.

I am told in materials that these shops are videotaped, and I'm assuming the manager can verify footage that i was indeed in their store for X minutes. Should I just always put time out as exactly what is on the receipt?? My scheduler seemed supportive, but I'm really not sure if he ranks above or below the reviewer when it comes to giving me instructions regarding this.