

Yolla seems to have similar prices. I bought some credit with them. I haven’t needed to use it yet, so I cannot vouch for the call quality. Unlike others, their credit doesn’t expire after a certain period. You can also get a good deal by searching for discount codes before buying credit.
With parental consent, we got the basic mechanics taught to us in grade 7. The very first thing was the teacher asked us what words we knew for genitalia (dick etc), wrote them all on the board, and then banned us from using them in the class. We were only to use the proper words.
Then in grade 10, without parental consent, we started getting weekly classes during our homeroom class. There were about five classes in total. It was conducted by someone from outside the school (from a group like planned parenthood I guess), but our teacher was present.
There were many discussions, different forms of contraception were introduced, and literally passed around for us to look at. The pill, dental dams, condoms, female condoms, (I’m probably forgetting some). We practiced putting condoms onto plastic bananas, and were all given one (some?) to take home.
There was an anonymous question box which the instructor answered. Sex for pleasure, including masturbation was discussed. I don’t remember anything about LGBT as it was a different time then. After high school, though many classmates came out.
I do remember one of these lessons was about STDs, and the instructor was going to show those horrific pictures as others have described. But our (cool) teacher stopped them. Overall, it was a great experience for us.