Robi Online Customer Service or 'Robi e-Care'
Now Robi enable a online portal where you (The prepaid customers) can create an account to get the following benefits-
1. Check your credit,
2. Dues and bills online Check
3. Subscribe and unsubscribe to Robi services
[like: goon goon, MCA or Radio etc]
4. Add and remove FnF numbers
5. Download Goongoon songs to your mobile
For registering you must need your NID- National Identification Card Number.
After creating a n account you good to go!
To do so click this link
Also you can get e-sheba by email support.