Return of products.

I had received delivery on the 16th June. Due to the products being to big I have logged a return with a return ref ***1. That I was advised to write at the back of the invoice. I have emailed asking if it has been logged as a return and send confirmation through to my email address. I was advised pick up for returns take 1-2 weeks. Please advise why so long? As I only have 14 days to return. Please these products need to be collected sooner and return credit to my account. I have emailed. But still no response. A person can't wait weeks on end for a response.