Yesterday I got one purporting that my "Microsoft has expired". It was a deep voice, very little accent, official sounding and they never said which Microsoft product was expiring. I was instructed to call what appeared to a toll free number.
A few points here. Microsoft 'Products' do not expire but rather the 'License' to use may expire. With the new way that they are selling Office 360, the rental license may expire. Here in the US it would take an offshore number to be charged back to the caller. I assume the toll free number was to an aggressive sales group that was trying to scam credit card info.
I don't know if you blokes are getting the Vehicle Warranty expiring scam. Evidently they are selling some sort of an overpriced extended vehicle service contract. In California, the only people that can sell these are California licensed automotive dealerships and the dealership must stand behind the policy if the servicing company fails. Very few dealers will venture into this realm of business. When I get one of these "Your vehicle warranty is expiring" calls, I answer with "Which one?" And then fun and games ensue. "I have 20 trucks." "The VIN numbers are down at the shop" "I can't get there until next week because of the holiday shutdown" "Holiday? The original owner died 6 years ago today" "What brand? Ford, Chevy, GMC, Dodge, Nissan, Toyota" "We let the employee pick the brand that they want"