A system for updating a merchant customer account database is provided, wherein the system may be used to update a merchant’s customer database in response to changes made to a customer transaction account. During transmission data pulses may suffer jitter. The stand assembly also includes torque correcting means for generating a torque which varies non-linearly with rotation of the stand, thus allowing a tilt angle of a monitor body coupled to the stand assembly to be easily adjusted throughout a large range of motion. In a second embodiment, the session control and media control messages are supported with a single bearer with a QoS that suits both types of control messages. When action messages corresponding to multiple update messages are interleaved, the Fair-Ordering Service matches the action message to the appropriate update message.