There is no loophole.so what is the "loophole" in regards to self checkout vs manned checkout?
there is no difference unless its to monitor how many you buy or clog up the checkout machines
Self check out you do not have to get staff involved or waste their time.
Manned you must get staff to do it for you.
Both have a limit of 4, unless in some cases IF the staff knows how, to by pass the only 4 per transaction limit. I went to manned one, She (staff) said I'll try and scan all in one go, system stopped her at 4, she asked her supervisor who was behind her. She said just scan until the system says stop or no more and do it in another transaction.
We do not know why some want you to go to manned some to go to Self. Fraud? to Control what they sell? To make sure each card is scanned correctly? So that no troubles occur later on? Who knows.