Have you tried setting up a filter to block them? Are they always coming from the same email address?
Yes same email account
OK then, on the Inbox page click on the gear icon in the upper right corner and then on Settings. On the landing page you will see "Filter rules" in the left pane. Click on that and follow the prompts. You can set up a filter for an email address and there are a number of optional actions you can set it for like just deleting it, or moving it to Trash or some other folder and so on. After you are done with the filter, sign out of the account and back in again to get it to "take".
Thank you for your post and please feel free to create another if you are still needing assistance going forward.