For unifi Mobile & unifi Air bill payment channel, you can refer to this article below,
Where can I pay my unifi bills?
*all services under unifi (unifi Home/ unifi Mobile/ unifi Air) share the same payment channel.
Your bill date is always on the 1st of every month and the cycle is the full period of the month (e.g. 1st March – Bill generated for 1/3/18 – 31/3/18)
We are giving 1-month waiver for you and it will appear on your first unifi Air bill. You will continue to pay your Streamyx until it is terminated.
If you have paid any deposit on your Streamyx or telephony service, the deposit will be returned in your Streamyx final bill.
You will have a new billing account once you subscribed to the unifi Air Plan. You will receive your monthly bill through your registered e-mail and in Self-Care