A patent has to be a unique idea and a new process.
- Counting on a abacus or a computer there is no difference -- counting is counting.
- You cannot patent selling either -- it is a commonly used method of commerce.
- You cannot patent brokering sales either -- brokering is not unique or a new process.
The patent should never been granted.
Too bad you had to spend all that money on the legal challenge and I hope you were awarded your costs in damage compensation