For me the same, buyed the original over Kickstarter and upgraded to a350t. I got no email coupon.
Hi, it was sent out at 11:30 pm (UTC+8) on Oct 15, 2021.
Thank you. I wasn’t able to find it for some reason, but with this information, I was able to. I already pre-ordered the dual extrusion motor before the first discount went away because I didn’t want to miss it. Is there any way to go back and apply my code to that order?
I am sorry that I may mislead you in my former reply. We did send out a 10% off coupon to our backers, but only the backers who have backed both the Snapmaker Original and 2.0 would receive it. The 10% off coupon was our special thanks to the backers who have supported us a lot in our Fifth Anniversary. My apology for any misleading.
If you are among the backers, who have backed both the Snapmaker Original and 2.0, but you didn’t find the code, you can contact our customer service at info@snapmaker.com for help. No worry, even if you have pre-ordered the Dual Extrusion Module, you can still enjoy the coupon on it. Our customer service team will arrange it for you.
Thank you and don’t worry, you didn’t mislead me. I did order both and with the information you gave me, I was able to find the code. I will reach out to the customer service team soon to get this done. Thanks.
So why the sudden and unannounced price increase to $429? I thought the preorder price was going to be $399.
It was only considered pre-order for a certain period of time, from what I understand.
It still says it’s a preorder. And the thing won’t ship for three more months, so if that isn’t considered a preorder… 
There was a pre-preorder for a few days only with extra savings.
Yes, but that was the $369 price. It was supposed to go up to $399 after that for the remainder of the preorder period.
Nope. Just tried.