Either wrong package or voucher disappear

I had problems with Groupon, twice in the last month. Firstly I received the wrong order and the box in which it was delivered was open. I did not receive the correct order. I bought these [URL Removed] ) but received this [URL Removed] ) which does not include the universal black cap or the spatula and it's the wrong size pans.<br> <br> Then I bought a coffee table (23 October) and I can't find the voucher or anything regarding the coffee table on My Groupon page. It just disappeared, this is really unacceptable!! I do have proof of payment as well as the ref# <br>