why am I able to make Creality Store purchases for less on Amazon than I am through the creality store using the app??? I have a premium subscription that I paid for through 2026 and even used a $5 promo code on my attempted purchase direct from creality, I had other more value promo codes, but they fail and don't give me an error why, the mount just doesn't get deducted from the purchase. on top of the more expensive cost than Amazon, I also have to pay shipping. as premium customers, we should get some sort of discounted pricing off the store . Amazon shouldn't be cheaper and have free shipping to boot. saved myself $15 on Amazon and they even had a $20 coupon applied for my purchase whereas there was only a $5 amount allowed to me on Creality.