Wrong order and a refund that they say they have issued but I don't have money still

I placed an order Saturday on the 18th of April on your app. The wrong order was delivered, I turned back the driver to the shop with the incorrect order. I then reached out to customer service via the app chat feature of which I was patched through to an agent that ended up not even getting back to me after the said they were reaching out to the store about the issue. I ended up having to call to find out what was going on with my order, only to be told that my order has been cancelled and a refund has been issued. I however never received any confirmation of the refund being processed. I have tried reaching out on chat to find out what is going on with no luck. It's been 4 weeks now and I'm still waiting on my money back. This is very frustrating because this was not even a fault on my end it was your store that messed up my order but I'm the one paying the price now . Instead of bringing my correct order they opted to cancel the order. You guys said it takes 2-5 days for the refund to be processed. The fact that I can't use my own money for what I intend to use it for because of someone else's incompetence is astonishing enough, but now I don't even get my refund in the stipulated amount of time makes it even more frustrating. This is totally unacceptable, refunds that are made due to the stores incompetence should be immediate I shouldn't have to suffer because of a mistake made by an employee. But when you guys take my money it's immediately.

I'm really just over this whole thing , I just want my money back and I don't expect you guys to make me wait any longer than I have already been waiting. Over the past couple of weeks I have been calling customer service and have been turned from pillar to post like I'm wrong for wanting my money back. VERY POOR CUSTOMER SERVICE