Goods not delivered after purchase

I AM ABSOLUTELY DISGUSTED AT THE ABSENCE OF CUSTOMER SERVICE FROM GROUPON! THEIR PHONE IS CONSTANTLY ON ANSWERING MACHINE AND NEVER GOES THROUGH AND NO ONE EVER BOTHERS TO REPLY TO EMAILS AND RESPOND TO QUERIES EXCEPT THEIR AUTOMATED REPLIES WHICH IS ABSOLUTELY ANNOYING!!!<br> <br> I bought a power bank on GroupOn on 16 November. The product was delivered to me and i discovered that it was faulty. i lodged a claim it was collected. in that period of collection, i bought the same product just to secure it so that it doesnt go out of stock. up until today, i have not received my power bank (the second one that i bought) and i am fed up chasing them trying to get direction.If i ever buy from them again it will be too soon!!!<br> <br> i have written to them countless times and tried tracking my parcel with the different courier services but to no avail.