It shouldn't take longer than 48 hours for your listings to be updated on our site and in most cases it should only take 24 hours. Currently our update cycle starts around 5:00 pm Pacific time, so as long as listing updates are provided to us before that time, they should be shown on our site the next morning when our site data is refreshed. However if listing updates are provided to us after 5:00 pm once our data cycle has already begun, they won't be included in that cycle and thus won't show up on the site until the day after next.
If your listings still haven't been updated at this time, I encourage you to contact our Customer Service Team via the link below.
P.S. Gerald, I checked our Customer Service database and did find a few emails you sent to us that have been responded to. If you still haven't received an adequate response, please feel free to contact me via my profile so I can make sure your issues are resolved.