Membership Upgrade

If I upgrade my account to platinum membership does that membership start when my current silver star membership finishes?
I hope that makes sense.
yes it makes sense.
No, if you upgrade for example of 1st July, thats when your upgrade/platinum account starts. You don't have to wait for one to run out before the other begins ...

what topic ?
If I upgrade my account to platinum membership does that membership start when my current silver star membership finishes?
I hope that makes sense.