This is the 3rd time Costco Pharmacy Concord has refused to honor the GoodRx Discount. The other two times I canceled and went to Safeway. I accepted this recent purchase due to time restraints but will go to Safeway for renewal even if their cost is more, because, invariably, Costco will overcharge beyond the discount. WHY DOES GOODRX CONTINUE TO SUPPORT COSTCO. Buproprion Hd Er (XL): 150mg, 90 tablets (Presc. # 6293643) Good RX Coupon Bin 015995 PCN GDC Group DR33 Member ID WU775954 Good RX Cost $24.90 Costco charge. $40.66 (after refusing to honor GoodRx discount.) I have 70, 000 social media followers. I think it's time they (and BBC) are alerted to these deceptive practices.