I respectfully request to decline your offer!

A polite way to tell someone to go f*** themselves and stop trying to sell you stuff you don't need.

I respectfully request to decline your offer. I’m not buying your fancy pills, I’m buying a pizza.

I respectfully request to decline your offer. Your sales rep is worse than my ex.

I respectfully request to decline your offer. I’m not your next cash cow, I’m your new problem.