Today I went to the store where I visited very often. Upon checkout, I gave the cashier several ECBs as before, but the cashier told me she could only take one ECB. It's one ECB per purchase. I was kinda surprised because I used to use more than one ECB for one purchase many times before in that store. The cashier went on to tell me that someone got fired because she let people used more than one ECB.
Since this cashier has been friendly to me before, I didn't bother to argue, just used one ECB and left.
Here is my question, has CVS changed its policy recently regarding the one ECB per purchase?
The ECB on my other cards always beeps at checkout and says not match the card. What can be the reason for this?