Dell’s sales techs in India are unfailingly polite but also unfailingly persistent. And they talk a mile-a-minute with a vaguely British accent. The Dell guy who called me the other day to try and fix a credit card problem with my order of a new computer also tried to sell me a video card.
He said the video the computer has is on the motherboard but if I want really grrreat video, I would need a video card. Is this grrreat video card free, I asked? Oh, no, he said, it is sixty dollars extra. In that case, I said, I will have to skip the grrreat video. He sounded crushed but we parted amicably.
THE TEXAS SCRIBBLER 
And their tech support is infinitely patient too, from my experience. Although in some cases not leading to a solution of your problem…
My only problem with them is their accent and speed of talking. I always have to ask them to slow down, but most of the time they can’t. Seems to be a cultural affliction.