They called us numerous times. Once before I caught the phone as it was ringing and it was the company checking on how we liked the Garcinia we had ordered. I told them we hadn't tried it. We received numerous calls again, and just now I caught the phone and the person said she was calling from Cambodia and wanted to know how we liked the Garcinia. I said I hadn't tried it and said that I had asked to be deleted from their call list. The person was apologetic and polite. I doubt this will work, but at least I tried. BTW It is SILLY that on an LG Vista phone one cannot block calls.
Make sure the callers are getting no kind of answer and be patient. If there's some kind of answer, they're bound to keep calling. A live voice is what they're after most. They get tired of calling numbers that have no possible hit.