I made a list back in October 2012 when Payza suspended their services in UK.
The list was to compare the restricted countries on Payza and Neteller. Although Neteller is not an option on ClixSense since its based in USA, you can see the common countries are highlighted in orange to make it easier.
* Please use the below list only the compare the restricted countries between Payza and Paytoo.
Lets not get into Neteller as there is no point discussing about it.