At the end of last month I received a two standard $25 cash back rebate checks from HSBC, one of my credit card companies. Unfortunately they forgot to sign the checks and I didn’t notice before depositing them. This resulted in a phone call from my bank, account adjustment, letter from the bank formally rejecting the checks, etc. When I called HSBC about this I found out that they had a batch of these sent out and that they will immediately send me replacement checks.
The replacement check that I received looked completely different, so I’m figuring that their check printer screwed up, didn’t catch this, and thus HSBC went to another vendor.