I replied to an ad and havent heard back from the advertiser
All advertisers have different schedules and different days and times they're online and can reply.
Most advertisers spend alot of time online and respond to inquiries quickly, but some advertisers may not have their own computer so may be unable to read your message and respond to you as quickly.
Some advertisers may be away on business, vacations etc and may not be able to respond as quickly because of this, and some people may have changed their email address and not yet updated their USFreeads account so are not receiving replies to their ads and won't know you've tried to contact them until they login to their USFreeads account next.
We regret that we're unable to act as a go-between and pass messages to and from advertisers.