G Shopping: Turn off price drop
currently, google offers no option to turn-off a displayed price-drop --
the feature is automated, triggered based on google's algorithms.
there are a few techniques that may help to
hinder the automated triggers from firing;
for example --
(a) submit very stable competitive prices over at least 60 days;
(b) do not submit the sale_price attribute;
(c) do not decrease an item's price by more than 5%;
(d) wait at least 60-days between an item's price decrease;
however, these techniques are in no way guaranteed to completely
prevent automated-extensions from being triggered for shopping-ads.
otherwise, this is mainly a peer-to-peer forum;
feedback may be submitted directly to google --