I am getting multiple spam mails per day now in my main gmail inbox. I think maybe google is offering paid access to companies who send marketing emails? I sign

I am getting multiple spam mails per day now in my main gmail inbox. I think maybe google is offering paid access to companies who send marketing emails? I signed up for a certain kind of service, but didnt use it, and now get many emails per week from competing companies which are spam, but get through.