Ready-made solutions for automatically sending hosting payment notifications?

Question

Billing systems

There is a small hosting for their own, when there were 5-10 people on it, there were no problems with sending payment notifications, everything was done manually :)

But the situation has changed and the number of people has increased, now manual sending takes a lot of useful time, and even follow for the timing ...

In connection with which the question arose, is there any ready-made solution for automatically sending notifications?

• - the text in the letters is the same, only the full name and date of payment change
  
• - notifications are sent 14, 7, 3 days before the hosting expiration date
  

Answer 1

I am a developer of https://PushAll.ru free notifications that can be sent to your customers directly in the browser or on smartphones. Without any restrictions. Convenient API through regular CURL requests.