user: I need help!! !
agent: I’d be happy to help! What are you needing assistance with?
user: My sisters account has been locked as it has been linked to an account with a negative balance though this is not possible!! !
agent: We’d be happy to look into it further. Have your sister call in or reach out to us here or on Facebook.
user: She don’t have twitter and your call centers have been ABSOLUTELY useless
agent: Calling in will be the fastest way to resolve any issues or if she has a Facebook acct she can reach out to us there. Thanks! M
user: Called in 4 times now with no resolve this is ABSOLUTELY disgusting
agent: 2/2 Facebook by visiting or she can email us at __email__. We'll be happy to talk with her.  Sorry to hear you're still having trouble. We won't be able to discuss your sister's account, but she can also contact us on 1/2

The customer have a big problem. The agent tried to solve the problem and offers choices to the customer.
### Instruction: Below is a conversation between a human and an AI agent. Write a summary of the conversation.

### Input:
user: I need help!! !
agent: I’d be happy to help! What are you needing assistance with?
user: My sisters account has been locked as it has been linked to an account with a negative balance though this is not possible!! !
agent: We’d be happy to look into it further. Have your sister call in or reach out to us here or on Facebook.
user: She don’t have twitter and your call centers have been ABSOLUTELY useless
agent: Calling in will be the fastest way to resolve any issues or if she has a Facebook acct she can reach out to us there. Thanks! M
user: Called in 4 times now with no resolve this is ABSOLUTELY disgusting
agent: 2/2 Facebook by visiting or she can email us at __email__. We'll be happy to talk with her.  Sorry to hear you're still having trouble. We won't be able to discuss your sister's account, but she can also contact us on 1/2

### Response:
The customer have a big problem. The agent tried to solve the problem and offers choices to the customer.