Why are only 10 items visible in my POS cart?

Wow! Looks like it’s been at least 3 weeks and they still haven’t fixed it. I just called about this issue today and was told they hope to fix it “soon”. No specific timeline given. She couldn’t (wouldn’t) even tell me how long they have been working on it. We sell a lot of back to school items in our store so it’s our busiest time of year and we often have large sales of more than 10 items. If you can believe it…I was told to try not to have more than 10 items per sale, lol! Oh, sorry, you can’t buy anything else, you’ve reached your limit. WTF!?