Hi,
In my opinion it depends on how the webmaster creates the join page.
If he places a big button of the primary biller on the join page and a smaller one for his secondary biller (without affiliates), then he's just making sure the sale will be made.
A lot of webmasters also place a text with the secondary biller saying something like "if you get declined by ... use our secondary biller ...."
If he does it like this I'm not seeing this as shaving.
The sponsors intention is just not to lose any sales.
(being one of the reasons I always tell webmasters to have at least one secondary biller).
Just my
