Hi.  I'm really interested in the place but I'm a little short on your total sking price of $2250. I have $1575.  Would you take that?
That is a bit low as with this you get the first month for free. 
I don't have $2250.  All I have is $1575 and I need to move soon.
At this time the lowest we can accept for this would be 1800. 
Can part of it be paid with a credit card then?  It would be my brother's credit card.  I can pay the $1575 in cash though.
Yes we could take part cash and part credit card for you. 
Okay.  It's a deal.
Thanks so much we look forward to having you live here!