Google sends out email by mistake offering a 50% larger discount on the Pixel 3 line
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UPDATE:Google has sent out another email with a code that will allow recipients to take $300 off of the Pixel 3 and Pixel 3 XL. The email is titled "Let's try again, here's $300 off Pixel 3/3XL." At the new price, the 64GB Pixel 3 will cost you $499 ($20.79 a month for 24 months) or $599 for 128GB (24 monthly payments of $24.96). The 64GB Pixel 3 XL will set you back $599 ($24.96 a month for 24 months) while the 128GB Pixel 3 XL is tagged at $699 (24 monthly payments of $29.13). The deal, available only to those with the code, expires on July 31st.
Google told Android users who inquired that the emails were a "glitch." Those who received the email from Google with the incorrect pricing will reportedly be contacted by the company via email over the next 24 to 48 hours. The letter will explain how Google plans to handle this error. According to one Reddit poster who spoke with Google, "They wouldn’t honor it (the $300 discount), nor would they say it wouldn’t be honored." We will update this story once Google decides how it will handle this boo-boo.

Some Android users received an email showing a deeper, but incorrect $300 discount on the Pixel 3 and Pixel 3 XL
Things that are NOT allowed: