Privacy policy
StressTech Receivables · Last updated 23 October 2026
Who we are
StressTech Receivables is the payment follow-up system of StressTech Engineers Pvt Ltd, a post-tensioning and RCC sub-contractor. StressTech uses it to remind its customers about bills and retention amounts as they fall due, and to keep a record of what was said. AILA CDS builds and runs the system for StressTech.
Data controller: [to be confirmed, #216]
What we hold
- Business contacts at our customers: name, role (for example site engineer or project in-charge), WhatsApp number, email address, preferred channel and whether they have asked not to be contacted.
- The messages we send to those contacts and the replies they send us, with delivery status.
- Business records about each project: bills, amounts due, receipts and due dates.
- Accounts for StressTech staff who sign in to the system.
Why we use it
Only to follow up payments owed to StressTech under its contracts: reminding the right contact before and after an amount falls due, and recording replies so StressTech staff can act on them. A StressTech staff member approves every message before it is sent. We do not send marketing, and we do not sell or share contact details for anyone else's use.
Who processes it for us
- Meta Platforms, through the WhatsApp Business Platform, which carries our WhatsApp messages.
- DigitalOcean, which hosts the system and its database.
- OpenRouter, which passes requests only to Anthropic's Claude AI models, with data collection for training turned off. The AI may help StressTech staff write message text and understand replies. It sees the message text involved, never decides what is sent, and a person checks its suggestions.
How we protect it
Message text is encrypted in the database. Only StressTech staff signed in to the system can see it, and each person sees only the projects they are responsible for. Our system logs record ids and actions, never names, phone numbers, email addresses or message text.
How long we keep it
[to be confirmed, #216]
Your choices
If you would rather not receive payment reminders from us, reply to our message saying so or write to the contact below. We will mark you as opted out and stop messaging you. You can also ask to see, correct or delete the details we hold about you.
Contact
Privacy questions and requests: [to be confirmed, #216]
Changes
If we change this policy, we will update this page and the date at the top.