Making False Promises to customers

Went into store yesterday looking for a ring to get engaged, we asked the lady how long it will take to get credit approval and explained to her that we getting engaged Saturday and we need the ring by latest today. She said it is fine, she will assist us to get it through today, and have an answer by today, this morning when we called to find out what is happening nobody firstly knew what we talking about and when somebody called me back and i missed the call, returned their call, they said i must hold on, after 20 min holding and nobody getting back to me on the phone holding, causing me to call from a different number, she then told us that we will only know tomorrow. What poor service we getting engaged tomorrow and now have no more time to get another ring on credit anywhere else! What big disappointment it is for me, getting engaged with no ring to my future wife to be having all the family over and the in-laws, with no ring. How must i feel as the future husband to be?