bgd66 Help: Backup Contact Channel
If you can't chat, there are other paths; each channel is set for different tasks
Email Support
Send documents, screenshots and account ID together; this speeds up verification, and you don't have to send the same message repeatedly
Ticket Number
Receive a separate number for each request; later that number can be used to follow up questions related to bKash, Nagad or Rocket
Help Center
On the bgd66 Help page, common questions for 18 countries are kept; APK, login and account setup steps are also there