Microsoft — Microsoft office license

Address:

Gurgaon, Haryana, 411004

I have purchased microsoft office license and I renew it every year through microsoft dealer "VINTECH ELECTRONIC SYSTEMS PVT LTD" in Pune
However every now and then someone from Mcrosoft calls me to tell that my licenses are not in order. Then they tell all wrong details such as "we may not update dealer data immediately - it will take 2/3 months etc." Then they try to sell me lifetime license
I think they are using wrong threats to harass small businesses asthey tell me that I will continue getting such calls if I dont buy lifeime license