Do not use olotels.com
I started to look for a hotel in rome, searched for it on Trip Advisor and got a suggestion from olotels.com.
When I had registered my name and email adress and was half way through the booking prossedure, I chose to cancel the booking. The result was that I 2 sec later had opened an account at olotels.com !!!
I have sent them emails and tried to call their contact numbers shown on their web site
When I tried to call the numbers on their web site they where out of service and not valid numbers.
My clear recommendation stay clear fo olotels.com..