Poor customer service

Had a leaking oil heater. Sent it back 3 times… 1st time for a leak 2nd time for a leak 3rd time for a clicking sound 4th time eventually asked for a refund. Still waiting. Not happy at ALL. This has been going on for over a month at the coldest time of the year my 10 month old has had a cold room since this whole process started. I have been more than patient. I have had to do multiple follow ups. It’s it’s not on. A notification has apparently been sent to Take a lot but no response. I was more than patient and now lost my sense of humour.