Some kind of spammers. Couldn't figure out what they are offering as the guy wouldn't listen and kept mumbling about some improvements. Rude and stupid
Had the name of my small business asking for me to boost my results on Google. Young girl, thick accent, probably Jamaican, USVI or other Caribbean. I kept asking for a number to call back later, and she would not give it. Very persistent, but not in a good way.
As the number that received the call is a business, the caller (a man who sounds to be in his 20 or 30's with a more or less normal North American accent, goes by the name John or Jone) asked for the owner, and when he was informed the owner is not available he just said ok and declined to leave a number to be called back at.