I have an issue getting in touch with a live supervisor in the mobile department for contract reinstatement!

I have experienced job loss; I am now able to pay my phone bill. My contract for my iPhone experienced a forced buyout. I was told it was sent to collections they transferred me to collections with a number. The number is invalid and my account is not in collections. I called back numerous times and numerous cases to get in touch with a supervisor over the phone. I just want to have my contract reinstated and service reinstated and continue the regular monthly payments that I previously had on this account. Can anyone please help me?