What do I have to do in order to claim 'lowest prices' or similiar claims?
I just put that in my ad (it's a correct statement) and it's getting some nice CTR's.
Conversely, a competitor has been saying 'save 70%' but with no proof. Hard to disprove as well though - it's like saying 'save 70% on cars' because they would compare buying a top of the line lambourghini with a ford focus.
Should I just carry on with my ad? How much proof do I need for Google to keep that ad running?