Chase the right debtor
The account you contracted with is the one chased, whatever the chain downstream.
Media, publishing and advertising
Between the advertiser, the agency and the sales house, the invoice passes through several hands. The Billabex agent follows the chain and chases the party that actually owes you.
Payment lands after the campaign, when it already belongs to the past. On top of that comes a chain of intermediaries: the agency is waiting on its advertiser, the advertiser changed contact, and proof of delivery is requested before anything is paid.
The agent chases your contractual debtor, records the reasons given and tracks the dates promised. Your sales team keeps the relationship, not the chore.
The account you contracted with is the one chased, whatever the chain downstream.
Duplicate invoices, statements, campaign references: the agent answers without pulling in your sales admin.
An announced date becomes a tracked commitment, not a note lost in an inbox.
The salesperson keeps the conversation about the next campaign, the agent carries the one about the invoice.
See on your own invoices what the agent understands from a customer reply, and what it does with it.