The real hennies

I absolutely love hennies but the fact that they have a 500g eisbein and 1 kg but it is not even that weight raw and then cooked its even less. So what happened is we ordered 1x1kg eisbein thinking it would be a good proper size but the thing came their the size of the chips bowl thingy they have we asked the waiter if it is the 1 kg thinking they maybe made a mistake we asked them to bring as the 500g then so that we can compare the manager brought 2 pieces of raw eisbein about the same size so we said it looks the same we want a 500g cooked one he then asked if they should weigh it they weighed it raw and cooked the raw pieces wasn't even 500g and 1 kg as they said and then the said you will never get 1 kg because of their "supplier" but it is not fair to charge me 1 kg eisbein if it weighs 700g with the price being R200 not fair