When you first create a profile and upload a picture, you are given 10 free messages. You can use these to contact ladies of interest. I strongly recommend you putting your phone # for text right in the first message. That way you can message multiple ladies and see how things go.I would strongly recommend against using CuddleUp. Although free for women, men have to pay per text sent to and from each lady. And it's quite pricy per text, so I'm sure many men are turned off by it.
There are not as many ladies (or at least the one offering adult services outside of cuddling) on there for the Ottawa area, compared to the GTA but I hope it will catch on, especially in light of the recent CBC story about leolist being the next backpage and they may catch some heat, as a result.