Shancakes

I was overcharged and the owner refuses to provide me with a final invoice/receipt.The product collapsed and I never received partial refund promised
I ordered a wedding cake from Shancakes Bakery in *** of for my wedding on *** *** My wedding cake was poorly assembled and literally crumbled before the wedding beganThe bottom tier collapsed and had to be removed during set up, while the top two tiers sagged and were promptly removed from the reception because of their appearanceWe did not get to have our planned cake cutting ceremony at our wedding, and our guests had tiny slivers of cake because the owner never brought more cake like she told the venue and my husband that she wouldThe cake we received was not what we contractually agreed upon
I understand that accidents happen, but the owner handled the whole situation completely unprofessionallyThe owner is extremely difficult to communicate withI had to resend an email to get her to respondHer emails we