Avoid at all costs!

SmartMatter have non-existent customer service, terrible would be an improvement! I have been querying an electricity charge (a significant overcharge) for over 6 weeks and cannot get a response from them! You can only go via the helpdesk, there is no contact number to actually speak to someone. I have tried adding comments to the query, to get it reviewed again - nothing. I opened additional tickets on the same problem hoping that would help. All they did was close the original tickets to "avoid duplication". How can you duplicate nothing? It feels like *****! If you have ANY alternative to them, take it! I have no choice as they are appointed by the building management.