Poor service and poor quality and ****mer behavior

I bought a wig online and specified that i want a medium cap. Upon receiving the wig i discovered that they gave me a small size wig which didn’t fit at all, in addition the hair quality was terrible unlike what you see advertised online or by influencers. I then requested for a refund to which the customer service agent Tlaki told me they would refund me and that i should send my bank details. I immediately sent my details and they told me to expect the money in my account after 7workings. It’s been over a week after the said 7working days and now they’re ghosting me and ignoring my calls. This is ****mer behavior. All i want is my money.