Khadim's — Replacement

I bought a 8 no. brown Oxford shoe (order ID 543213 and ref: [protected]) from Khadim's online. The shoe has been delivered on 31.10.2020 but I found the shoe is being small for me and need a size larger than this size. I applied for return but no information received till now regarding how could I get my money back or how could I get one size larger shoe. If it is possible to deposit my money in my Khadim's online account after returning the smaller shoe, I could buy a larger than from that account.