Rapidbox — I'm complaining about rapid box refund mistakes

I purchased shoes from rapid box i got delivery also but the product i order was big size.so I returned it next day they came n picked it up .I received cash in to my rapid wallet and i withdrow money to my bank.but my money is not transfering to my bank.i send mail nd complaint .14 days late still I didn't receive my cash in to my bank. request to pay back our money