Dear vendors, thank you for your products, services and great customer service, but please listen to what your (prospective) clients say and respect those answers.
I am aware of your need to meet your sales quotas, earn your bonuses and grow the business, but becoming a spammer or a telemarketer is not the way to go about it. Respect your clients and their time and work with them towards strategic partnerships as that will provide long term grown, retention and revenue to your business.