LACK OF SERVICE

My emails ceased working. For 14 days I was in contact with 1-Grid to repair the problem. Promises to call back, employees laughing about the call before they cut the connection and eventually I was assisted by Selma who told me I had to change my password, which I did with her. Still no emails. When I called again she told me the password was too weak so she changed it BUT OMITTED TO TELL ME. Emails then back on line for 4 days. Now no emails again. Several phone calls and then was answered. As my airtime was almost done I asked the person to call me back. To date, I still have no emails. How am I supposed to conduct a business with such poor service from my service provider.