GoodRX coupons are a come-on. I've had one long out of patent drug jump from $14.77 to $100.58 this year. My doctor was amazed at this. (I just sent that info to the NYT; they have a form for this in the article.)
They might offer coupons in addition to that (I don't know), but they primarily negotiate prices for a formulary. So those prices aren't going to be one time coupon type prices, they are going to be the price they have negotiated with the pharmacy in question (which may indeed change as they renegotiate).
1) We're not a pharmacy benefit manager; we just list prices and available discounts.
2) We're constantly looking for new prices and lower discounts. While prices don't generally change as much as mentioned above, they do sometimes change. I believe we're familiar with this case, and this was the removal of a price by one pharmacy benefit manager. We're sorry it went up, but it was only because this price has been adjusted by the pharmacy benefit manager, not because we're up to anything evil.