by Drunkenight » Thu May 27, 2010 11:16 pm
They are charged separately.
For example if you generated £50 in commission+implied comission you would be allowed £50 / 2 = £25 woth of transaction charges. If you are an API user this is charged at £0.01 per transaction over 1000 per hour.
In this example you would be allowed 2500 additional transaction for the day.
This is totally independent of the data charges. So yes, you can use the £50 towards both charges.