[Bevdeforges]

Hi and welcome to the forum. I've moved you over to the France section of the forum in the hope of attracting a few more responses.

There is nothing wrong with using your parents as "sponsors" on a student visa. You may, however, need a letter from them stating that they are supporting you and will continue to do so.

If you only paid for the first three courses, then your visa will only be issued for the one year. Given that you're still in the stage of filling out forms for your visa, you may want to re-contact the Sorbonne to see about prepaying whatever further courses you want to enroll in. They are starting to crack down on renewing student visas, and if you've pre-paid for "only" one year, that may be as long as they will let you stay in France.
Cheers,
Bev

 

[Bevdeforges]

I'm not sure how they coordinate things (or even if they do), but the idea is that you get a visa that allows you to enter France. Then you get a titre de séjour - but under the current regulations, apparently the first year's "carte de séjour" is now actually a validation of the visa stamped into your passport.

In order to renew your carte de séjour, you need to submit documents showing that all conditions are the same as when you got your visa. If the initial visa was only for 1 year, that should mean that your carte de séjour is not renewable.

Like I said, I don't know how (or if) this is coordinated. You may want to check with the Sorbonne to see what happens if you decide to continue past your initial classes.
Cheers,
Bev