www.burkilimo.com

I've been using them for the past year - very attentive and responsive co.
Oh - Not sure if you are looking for a general car service (executive sedans - or an actual limo - I'm not sure if they do that) - Check the website - very easy to browse and make a reservation.

I usually ask them to confirm my details to my email - just to make sure nothing get lost in translation.

Good luck.