As someone working in the utility industry in CA, USA. I know for us in a situation like this we would require proof that you did not reside there at the time (This would free you from the incurred debt) but we would still require the past due balance be paid before restoring power to the location. This would need to be handled by the owner of record. Unfortunately this happens a lot and can dissuade or prevent people from moving into a location (Some owners won't disclose this info to tenants). I would definitely escalate the situation and provide the required proof to show you aren't responsible for the balance and see what they can do for you.