Problem with return

[Elliemay+123]

I ordered an apple MacBook 15 inch and when I received it it was the wrong one so I phoned Sky and returned the item immediately. I had an email back on the 4th of December to say I had received it but for some reason they haven't amended my bill. It's still showing that I have to pay for the Apple MacBook that I returned.. 

I have emailed Sky Mobile four times no reply

I'm guessing to the point where I'm thinking of counselling my direct a bit I'm just paying for what I owe not what they're telling me I owe which is incorrect. why is it taking so long to amend my bill?

[Daniel0210]

@Elliemay+123 

Sky don't use email for general communication so that will explain why you haven't had a response. 

The device will need processing and checking for damage before the change is reflected in future bills. You'll need to call Sky for a progress report.