I have received a call from this number 2 days ago and again twice today. All stating they were from Dell and had been made aware of problems on my computer. I let them know that if I did not call for help from Dell they should not be calling me. They continued to insist in letting them instruct me on bring up a few screens. After realizing they did not understand no, I threaten to notify authorities and then hang up. By the way, who can you notify?