Looks like it's for new customers only.
I got the targeted email saying it was for new accounts but i had my friend do it and he was able to get 40 pieces of masks for 9.99$ which is basically $0.24 - $0.25 for white kn95.
Seems pretty good. The shipping is the only 9.99 part. I removed all tracking or referral url as well
https://sqmedicalsupplies.com/produc...t-pay-shipping