WORST Online Shopping experience! Never Again.

I logged a request for a return on the 27th June. It is now the 9th July and my parcel has still not been collected. I have sent 4 emails to customer care with no response. I have tried calling the customer care line which is always 'experiencing high call volume' so cannot get through. I have reached out via Facebook and been assured my parcel will be collected within two days - still nothing.

How can my parcel STILL be waiting on collection for over two week, when other online retailers can deliver, approve a return, uplift and item AND credit funds back into an account in 4 days.

Very unsatisfied with their complete lack of customer service.