Money market at tills always "offline"

I am really very tired of this branch because every single time I go there and pay an account (the one you have to type in), the teller tells me "its offline". This happens EVERY SINGLE TIME and 100% of the time at the tills (not money market). I can only surmise this its a lie, and it definitely is a lie, because I will demand it to be done anyway and guess what it works every-time. I am not sure if this branch instructs the tellers to do this because all the tellers at this branch do this just because they are too lazy to type in the account numbers.