Zendrop: AI Dropshipping & POD

Zendrop isn't able to perform what they advertise. I gave 2 stars because they at least fulfilled the orders (barely) but there have been so many problems with fulfillment. My first product took 5 weeks to get the customer, second product took 4 weeks. There were packages that got sent back to the warehouse but nobody notified me, 2 out of my 8 orders were missing a key component. I tried to use the Amazon supplier but the items listed aren't accurate. They may confirm that the product is available, but it can go out of stock as soon as you fulfill the order. When I reached out to support, Brenda said "Unfortunately, inventory levels can change rapidly in dropshipping. The product was available when you placed your order, but the supplier's stock was depleted shortly after." The only thing that is good about Zendrop is their support. Even then not every response is accurate. I was told Amazon products get shipped in plain packaging, then it arrives in Amazon packaging. Not really sure how to use them for fulfillment when I can't trust if/when the product will be fulfilled. I've been trying to use them for over a year to get my store off the ground, I give up