Clothinkhub - Wrong prouduct delivered

There is a website which is called Clothinkhub (https://www.clothinkhub.com)
i has ordered a black hoodie on **-**-** from this website. But at that time after i ordered i want to cancel it but there was no cancel option available. But on the next after order i was mailed this company that please cancel my order as soon as possible and i don't need it but they were not replying that time and i was messaged on Instagram also because they has page also on Instagram but there is no response i got. After * day they told me that they has shipped the product and please share the screenshot of order. I've already share all the details with them regarding and i've also told them that i don't need it. On *-**-** product has been delivered to me and i had to pay the amount to delivery boy and i think they would provide me return shipping but I was wrong. From the day product delivered to till now they aren't replaying single message and emails of my and there is one mobile no. Which is Available on their website but that number is also unreachable. I want to refund my money and i don't want their product. Please i want to money back. I'm greatfull to you if you would help me. I will be forever grateful to you for this