Need some help...what would you do:

[smitdavi]

wow...So get this:

The rental property that we rent from hadn't cashed our rent checks yet, which is a $1,000 from last month including our pet depo for Dante. Thought this was weird, hell they usually cash our checks right away. So we called them today and asked if there was a problem with the checks and why they hadn't cashed them yet. They then asked us when and where we dropped off the check. We told them same day same place as the prior 7 months. Then you could tell this light went off in their head....Oh we've moved (which we never got any notification about), and that would explain why we haven't been receiving alot of renter checks from last month. Ended up asking them a few more questions before ending the conversation...The main one being if we were going to be charged a late fee for their stupidity? She said she didn't know and would be calling us back. Pretty sure if they charge us a late fee I'm going straight to the BBB. What would you guys do?