ABTANumber and Password Request Parameters

[RosieWatson]

Although stated as mandatory in the 'Car Park Availability Request' doc you are able to make searches without an ABTANumber and Password and it will still return all the correct information and no error messages.

However, if you then move on to make a booking request without it an error message is received that states card information is missing.

I would suggest the error message should be changed to say its the ABTANumber and Password that are missing as the payment information shouldn't be passed through the API in the UK. Else, if this is not an easy fix, it should be stated in the doc that if this error is shown they should check their ABTANumber and Password.