Pool liner failing after 2 years -- Company ignoring contacts

[VAL A.]

Pool liner installed 2 years ago, Albuq NM.   Liner is tearing apart at bottom.   Contact made directly with owner of pool company--4 contacts since June 15--spoke with owner each time.   Promises he will call the tenant.   Tenant has also called him---No response.   Advice please.   I'm out of state.   This company was referred to me.  Today I investigate and see rating is F with BBB.   

What actions might anyone suggest?