The problem is the payment takes longer time to be cached.
I try to eliminate the steps which could cause the delay.
(1) PC banking method - on time and effective and traceable
I use PC banking to pay. The mailing address is confirmed by LL's office that is correct address. But, PC banking was suggested to add "the leasing office"; while other voice from LL's office replied "the leasing office" does not speed up.
PC banking advises to have LL to fill out Electronic Payment Enrollment Form.
(2) Mail Certificate I delivered March payment to the leasae office at the correct address and the return receipt shows 2/27/2012 as the arrival date of the payment. But, this personal check has not be cashed on 3/16/2012 as I am posting this paragraph.
I provided all the copies of my payments to LL( from the first month ~ December 2011) via mail certificate in December 2011 and asked the receipts and what LL charged some outside the rent, parking fee, and utilitiees.
I do not receive responses from LL, but the court date.