Amazon has messed up my last few next day orders, seriously breaking down my confidence with them. I made a purchasing decision based on price with next day vs

Amazon has messed up my last few next day orders, seriously breaking down my confidence with them. I made a purchasing decision based on price with next day vs price in store right now. I went with amazon and 1 out of 3 items got there the next day. The other two items listed with delivery by 8pm, which I waited late at the office until after 8pm and I got an email telling me they would be there 2 days later and that they were refunding me. I don't care about the refund on shipping, the items were business sensitive and needed ASAP, so amazon really lost my confidence that next day actually means next day (this was not the first time either). So I think amazon definitely needs their own shipping because these third party companies don't give a shit about amazon customer service. I know Lasership especially in NYC has straight up lied to me about delivering a package that they forgot and just went home.