Can I get a free trial of the smart phone app for demonstation purposes?

Can I get a free trial of the smart phone app for demonstation purposes?

I am going to do a presentation on zoho crm to the MD at my company. I want to show off to him the benefits of the zoho CRM programme in all its entirety, and to do so would like to make use of the app, to demonstrate it on the go.
 
I had gained access to the app for about a week or so, but then was denied access - probably due to only being on the free version.
I am demonstrating the benefits of the CRM to my MD through the use of the free version- we are only likely to pay for the upgrade if the MD agrees that it is a worthwhile thing to get into. I therefore was wondering if someone from zoho could sort me out with maybe a week's worth of a free trial for use of the phone app, so that it could be linked to all the work on the crm at the moment, and therefore highlight the beauty of how easy the zoho CRM system is to use.
 
Any help on this would be great, thanks.
(We are a UK based company- doesn't help to only be able to phone up in the US)