Adidas Samba OG Black Wonder White Signature Footwear

I purchased a pair of Sambas for my grandson. They sent me a ladies, and wrong size. They said they were correct and I was offered a 15% refund for shoes that were $155.00. I refused and the said their sizing was correct. BTW-a men’s size 8 is a ladies size 10, I needed a men’s 8, they sent me a ladies 7😤. Then they offered me a 30% discount because they said it would cost ME $60 to send it back to Hong Kong (they say they’re from CO). I’ll be visiting my bank tomorrow, they will give me my money back and go after them.