The number is ours, but the scammers are using software to "mask" their true phone number and replace it with ours. As far as our Limited Warranty Technical Support, they are not trained in how to deal with this issue. We were told by Dell legal to refer our customers to the form and Wiki in our post on this Customer Care Forum.
First of all the number I am constantly called from is 800-624-9897.  I've called this number back on several occasions and what a big surprise.  Goes right to Dell.  After wading through what is the most ridiculous "assistance message", one finally gets a person that is less advanced than the average 2 year old.  I totally regret ever buying a dell computer.  As soon as the one internet software I use on a regular basis goes multi-platform this year.  I will actually be done with any Microsoft and Dell product and the dell computer will be permanently disposed of.  You Dell Support team is useless.
Scammers using real Dell number?