From April 6 Google May Suspend Your Site If the Pricing in Merchant Center Does Not Match the Pricing at Checkout
https://support.google.comBeginning April 6, in addition to reviewing and enforcing price accuracy between your Merchant Center product data and your landing pages, Google will begin to review and enforce price accuracy at checkout.
If during an account review Google finds that the price provided for one of your products at checkout is higher than the price provided for that product on its landing page, you will receive a 28-day warning to resolve these mismatches, otherwise your account will be subject to suspension at the end of the warning period.
You will receive a second announcement when the enforcement is active as a part of the 2021 product data specification update.
