Shocking customer service & returns take half a month

I have been an ASOS customer since 2008 and have spent a great amount of money. However it is only this month I have made use of their 'free returns'.

I returned one of my parcels using the Collect+ service which delivered the parcel promptly to ASOS but I was told by the customer service it can take another 10 days to process the return and another 2-3 to see the money back in your account... so half a month in total! This is totally unacceptable in this day and age. I was notified by the customer services (very nonchalant and almost rude) that ASOS do not send out emails when they had received the parcel.. Clearly poor communication between the company and its 'valued' customers.

On another occasion I was sent the completely incorrect item and the lady I spoke to told me she had left a note by my account.. Which in turn I found out was lies. I contacted them again regarding my first parcel and raised this issue about receiving the incorrect item and they told me that there was no information by my account!

The customer service advisors have no empathy, I work in retail so I know what it's like but they could at least pretend that they care!!! I could also hear laughter and noise in the background while making these calls. It's just rude! I finally managed to get my money back on one parcel but after calling and calling. AVOID at all costs.