It is for reasons like this (scrubbing) that we created MPA2 so that the sponsor can switch which processor is first, second or third in the cascade. The truth is, and we know this from years of experience, that the processors scrub harder on certain days of the month, block out certain countries some days of the month, etc. etc. etc.
This is not something that is easy to catch, obviously, but normally will be caught in a true cascade of processors.
I would ask your sponsor directly if they have experienced it overall or just for you as an affiliate - this way THEY can go in and see if a change in the primary processor would help. Often it does.
We see BIG differences overall in the % of sales that is picked up by the second and third processor when the primary is this or that.
