it seems you are in the EHR(electronic medical record business).if i am correct
I am not an expert but i will will give you some tips
Please dont give up, building a business is hard everywhere but it takes time,patience, persistent and determination to succeed.
1) Have you compile list of hospitals in your location,try doing it your self, go to hospitals around you and tell them about your service,explain to them about your services,the benefits, you can offer to help them put all records into your system for free,offer the free service for 3- 6 months then when they see the usefulness of your service and cant live without it ,you convert them to paying clients.
2) you need a physical person on ground to train one person or two staff of the hospital,explain to him or her,how the system works,make sure there is an open communication between the two of you.every staff wont have the patients to learn the process or use the chat system,,train one or two persons to do the job,he will be the point of reference for every staff.
3) imagine if you call and visit 2 hospitals per day explaining to them about ur startup
1 person = 2 hospitals per day * 5 working days=10 hospitals in a week*4 weeks=40 hospitals per month
there is power in numbers if you and your intern go out and visit hospitals, in a month you might have visited 80 hospitals and maybe 40 will be interested,you need to bring them in for free that way they see the usefulness of your system,depend on it and start paying.i hope you not charging in dollars ? charge in naira ooh ,it helps alot.