ATT prepaid multiline: When does the new plan start? When do I pay for it?
I just get my prepaid plan (35/Mo) today (Aug 29, 2018) and am thinking about adding some of my friends and switching together to another plan (55/Mo). However, I have the following concerns:
1. When will this new plan start for me? This billing cycle or next?
2. If I send out invitations to my friends and they accept them on difference time, when will this new plan start for them? Right away or next billing cycle of me?
3. Will I have a new balance to pay for right away as I switch to that plan and as my friends accept the invitation? When should I pay for that balance? What would happen if I don't pay for that right away?
Thank you so much!