Why should anybody help you because you're wrong. Your options are:
If you refuse to pay, your landlord can evict you which will ruin your credit. Landlords verify your credit before they will rent to you and they can reject tenants with poor credit.
You can pay the repair bill and continue living where you are - BEST OPTION
You can move but if you have a signed lease, when does your lease end? If you intend to break a lease, it's another reason for your landlord to file for eviction and ruin your credit which prevents you from renting anywhere else. Do you intend to pay the remaining months on your lease?
Evictions stay on your credit report for years and landlords do reject tenants who have been evicted.