I too fell victim to the buytopia scam. I bought something in November and never received. I started inquiring in the new year and I just received replies like it is in transit so nothing we can do and sorry it is late but nothing we can do. I inquired probably 6 times until I finally filed a complaint with the BBB.
Buytopia responded to me within hours and said they would refund my money but would take 10-15 days. At this point the BBB closed my complaint as they thought resolved. 3 weeks later I did not have my money so went back to the BBB and also sent Buytopia an email stating I filed a complaint with the BBB and would also be contacting the Ontario Consumer Complaint Board (https://www.ontario.ca/page/filing-consumer-complaint#section-0) if I hadn't heard within the week. I received an answer saying my money was refunded that day but would take 48 hrs to show up. It showed up 3 days later.
A lot of work but was definitely worth it! They should be shut down! NEVER buy from them!