Well I think I'll do a small hijack and add in some observations.
Because of work I take at least 4 long taxi rides a week (ie. home to airport, airport to client, client to airport, airport to home).
I happily use my Diners card in about 7/8 of the rides but occasionally I get a Taxi who only puts Diners (and I assume AmEx) on those horrible plastic sliders for manual processing.
My pet peeves is that unlike doing this the electonic way, it often takes WEEKS before you see that particular taxi trip on your statement (both online and physical) and that it can often be boosted up beyond the 1.11 multiplier you apply for GST on the service and ride.
It's a BIIIIIIGGGGG headache going through the whole complaint route for those few extra dollars and right now I'm compiling the last few months worth of travel for a big complaint.
I've even got taxi rides for dates I did not TAKE!!!!
Admittedly this could be because i did not fill in the date field so hence I have to wait for all my other taxi rides to filter through to confirm if this was a receipt for that day.
My tip to you all is to insist as much as possible to do it electronically, if you DO have to do a manual process then make sure you have the DATE on the drivers and your receipt, make sure you have the drivers number on your copy and that the DRIVERS receipt has all the right number fields put in.
Eg. Melbourne trips to the airport going through city link will be something like:
Base Fare = $40.00
Service Charge = $2.20
Total = $42.20
The driver will often just say the $42.20 amount and unless you know or ask you will have to do some mathmatics to get the fields correctly filled.
Also, because you will be charged an additional 10% service charge, your expected bill will be 1.11 times the amount on your receipt so don't panic if you see a slightly larger figure.
Whew... End of Rant.... I had to fill in TWO today so was a bit peeved about it. Almost two whole weeks without one and suddenly a double whammy.
I made sure the drivers knew I was filling in all their information on my receipt though to reduce thoughts of funny-buggers.
Regards
Daniel
PS: No disrespect to the 99.99% of hard working and honest Taxi drivers out there but I seem to get the 0.01% that likes to do a dodge.