Bradmed - Syntrop application - not working

I purchased this blood pressure monitor as required by Discovery Health, specifically to record my readings and have them automatically uploaded via the Syntro‑P app. Unfortunately, the app has not been functioning as intended, which completely defeats the purpose of the device. I have made several attempts to resolve the issue and to get assistance, but have not received any meaningful support or solution. This has been quite frustrating, as the product and app were clearly intended to work together, and at present I am unable to meet the Discovery requirements because of this.