You can offer to pay by the day for the service.

He offered to pay to bring me over for the summer.

He offered to pay another $500 million to the Federal government.

The company offered to pay the Government about $1 million for computer time and other services.

One thing I wanted, and they had offered to pay me.

He'd even offered to pay them for the days they were gone.

He said a few later offered to pay for what they took.

It's the only thing he has offered to pay for.

I had even offered to pay him for his time and trouble.

Or offer to pay what you think is fair - not the full amount.