It depends on how service was set up at your community. There are two arrangements, and your welcome packet says which one applies to you.
Community billing — you pay the leasing office
If internet is included in your community's package, it is billed along with your monthly rent and is due on the 1st–3rd of each month. Pay the leasing office exactly as you pay rent; do not send a separate payment to STELLAR.
Direct billing — you pay STELLAR
If you signed up for service on your own, or added an upgrade the community package does not cover, STELLAR bills you directly. Payment is due by the 16th of the month to be considered on time. See How to pay for every payment method.
Which one am I on?
Check your welcome packet first — it names the billing arrangement for your address. If you no longer have it, or you are billed by both and are not sure why, contact us and we will confirm what your account is set up for.
A note on DIRECTV
DIRECTV programming is billed by DIRECTV, not by your leasing office, even when your internet is part of the community package. Billing questions for that service go to DIRECTV customer care at (800) 531-5000 — see DIRECTV billing issues.