Does google deal with referral products ads as the contextual ads when invalid clicks are made on them? I mean there are no problems when someone clicks more than one time on the same referral ads, no charges occur. RIGHT
Yes, but remember that you can't click on your own referral ads even you do not proceed to the conversion page -- it is still against TOS and a method that Google uses to track fraud.
That's BS! You can click on your referrals as much as you like. Google does not care about that since they count only for conversions in the referrals program!
clicks dont count in fact google promotes you to have referals near good fetaures like image /youtube video etc
Clicks on your ad is strict prohibited -- You are assuming that it is allowed but you do not have any source for it, Follows a source (The AdSense Program Policy!!) that tell it is strict prohibited for any reason: I'm an Adwords gap and I know AdWords publishers that put conversion code on landing page, setting a click value for the lead -- so they virtually uses ppc but they can use referrals network that has less fraud compared to content network. Also you are generating a false statistics for your publishers -- so will be more difficulty to detect fraud from your site -- the statistics will became a mess if you click on your referral ads. Click on your own referral ads and you will set a red flag for your account.