Changed returning customer bonus to Modvigil?

Review for Modvigil 200mg
4/5
Changed returning customer bonus to Modvigil?
Why did you guys change from Modalert to Modvigil for returning customer bonuses? I find they are both equal in quality, but not price. Is this a profit margin thing, or dictated by your stock quantity? I'm ok either way, but just wanted to find out why.