I just tried to make a tipu transaction. The post still had over 2 hours to go before it is over 3 days old (as shown by both Steemit and SteemWorld). I got an answer in a refund tht the post is too old. 

Does this mean that I must not try to transact on anything over 2.5 days (as it is with smartmarket)?

EDIT Now you have totally confused me!

I just tried for another post which is newer and got this:

>@tipu refund: @arthur.grafo/autistic-child-kidnapped-by-state-ends-up-in-cps-system-before-being-trafficked | this post is too old (more than 1 day). Please make sure that the steemit link is valid (no #comments at the end for example).

So now you ONLY work with brand new posts?

Always, for most of my posts, I try to make a transactin with smartmarket so as to get a larger number of voters and then come to tipu.  Working this way often means I have to make the second one, with tipu, after it is over 2.5 days, depending on when I get finds in. If the above is true, it means I cannot use your service anymore....typical of how life is, just as I made the decision today to delegate to tipu, this happens.

(if you are wondering why I chose to do the delegation to you, instead of to smartmarket, it is not because you are more profitable...I'm not good at working out who of the two of you is, it is because you answer my queries, whereas the wolf does not, so it is a pity.

ce la vie