Two types are outlined here. This is a concealment cipher. In this example, the middle letter of each word is used to encipher the plaintext message. These more difficult ciphers may bend the normal rules. Longer cipher lengths prevail to allow statistical analysis and aid in solution.
Plans are in the works to allow credit card payment of dues.
However, until that process is in place, checks or money orders are the only acceptable methods of payment. This process should be easier once credit card payments are in place.