Marketer's must provide something of value in exchange for their intrusion.Often this value is provided in the way of entertainment, humour or drama. In any case, it's the price you pay to gain an audience with the king.
If previous administrations have established a positive balance in your account, then you can get away without the toll for a short period of time, but it won't be long before your customer's hospitality and polite manner begin to sour as they turn against an unwelcome guest.
Honour the contract. Pay your dues in full and on time. Don't skimp on creative.