My rule is to NEVER deal with solicitors of any kind. It has served me well over the years.
If I have a need for a product or service, I originate the research necessary or ask informed persons I know for personal recommendations based on their actual experience dealing with a certain company.
For instance, if I want popcorn then Bill-N is the go to person!
Oh, and

to TOTV!
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Courtesy is Contagious.
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In theory, theory and reality are the same.
In reality, they're different!