Jusco is my fav, I find Tesco a bit messy. Sometimes no price tag and ever come across twice the promo price indicated on the shelf is not the scanned price, first need to convince them there is a promo - second time it happened i took photo of the promo price and show them - then wait for them to check and can be quite a long wait...
Yes, the price tagging can be trying many a time.
Usually, I will just not buy that item if it will take a long time to verify.
On certain week days, the replenishment of shelves are not being done on time too. We will just skip those items.