Non existing customer service on trying to return a wrong order

I have been a very loyal customer of OneDayOnly for a very long time, always receiving excellent service when ordering from them. I never had a bad experience before, until now...

I have ordered a carpet from them, which arrived totally different as advertised. So I thought, this is the first time, so I will just return it...

So I logged my return request within the 5 days requested on the 12 June 2020, with a very friendly customer service reply that they will reply within 5 working days. After that I have emailed 2 more times, asking them to please assist me, only receiving the same automotive reply.

They have no phone number to contact them and are ignoring me totally. I have a carpet I don't want and have no way to return it to get my money back.

I have always referred OneDayOnly to all my friends, but I doubt if I will do it again after they have neglect to assist a very loyal customer.