Half full cup

I love going to MD it's my favorite place but for the last few times I go I fined my ice coffee is getting worse my cup is getting more and more empty apparently that's how it gets made witch I fined very funny because for the last year I got it every 3 days I was the same then for the last 2 months it differs some days it's perfect some days it's half full yesterday I went to get one and I was shocked to pay so much for 1 and I got it half full apparently that's how it's meant to be made😡😡 I have pictures to show how I got it this is truly shocking to me