I had some contact with Wipro. It was their standard operating procedure to call us up and yell at support team members that X "Hasn't worked for months and you haven't done anything." when in fact they just opened the ticket. They would lie and reference the first old ticket they could think of and say it was the same issue (it never was, they wouldn't even lie well enough to reference the same equipment).

They would declare everything was a P1 ticket and demand it be fixed immediately. Then we would get some output from the machine or even remotely access it and find that outside of testing at the factory this was the first time it was powered on. When we would ask them for configurations ... they were evasive.

If you got their end customer on the line you would find that they had been lying to them for months. This happened a lot ...